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It has been 220 days since the outbreak of the latest dispute over date formats.

Numerals in a sequence

'Phase 1' or Phase one'? This appears to be a case that's not explicitly covered.

The AP Stylebook recommends using figures for sequences in its section on "Numbers": "Also use figures in all tabular matter, and in statistical and sequential forms", from which I infer that for sequences, such as 'phase 1', figures should be used for clarity and consistency.

Similarly, chapter 9 of The Chicago Manual of Style advises using figures when referring to a sequence.

I propose adding similar explicit advice to this section of the MOS.

-- Jmc (talk) 20:10, 19 October 2024 (UTC)

• As usual, what's needed before something's added to MOS is examples of this being an issue on multiple articles -- see WP:MOSBLOAT. Are editors not able to work this out for themselves on individual articles? Anyway, why does the word "Phase" need this in particular? Why not "Section" and "Part" and any other words like that? The advice from APA and CMS are great if you're making up a new sequence for your thesis, but that's not us. It's hard to imagine an article using a phrase like "Phase 1" or "Phase One" on its own -- that is, other than in imitation of the phrasing of sources. So follow the sources; for example, Economic Stabilization Act of 1970 refers to Phase I and Phase II and Phase III., because that's the form the Act uses. We're not going to override that in the name of consistency with other, unrelated articles. EEng 22:00, 19 October 2024 (UTC)

  To clarify: I'm using 'Phase' purely as an example. The issue of using figures for sequences applies to any sequence. including 'Section' and 'Part' - and other examples: "Game 3", of a sequence of nine; 'Chapter 9' of a sequence of 24; 'Week 4' of a limitless sequence.

  I raise this issue in the context of differing editorial practices in the British Post Office scandal article, where both figures and words have been used to reference the same phases and weeks of the inquiry. I sought guidance from the MOS and found none.

  I'd be content to follow the sources, without adding bloat to the MOS, if I could be confident that that's an accepted stylistic convention in this instance. -- Jmc (talk) 22:27, 19 October 2024 (UTC)

  Such names are very often established by authoritative sources and constitute proper names; we should follow the sources rather than renaming them. Per EEng, we only need a MOS guideline if our sources don't provide clear names and either there is dissent among editors or consistency across articles would be of significant benefit. In the Post Office case, I see the phases have been titled Phase 1, Phase 2 etc by the inquiry so unless the inquiry's inconsistent, we can follow that source. Still, I see that this is a live issue at that British Post Office scandal article, so it would be wrong to establish a new guideline or issue some sort of MOS talk-page ruling without the knowledge of the other editor; pinging MapReader. NebY (talk) 14:56, 20 October 2024 (UTC)

  Between May 1966 and December 1989, multi-episode Doctor Who stories could have titles in any of the four combinations of (i) "Episode ..." or "Part ..."; (ii) numbers as figures or as words. The decision as to which format to use was probably in the hands of the series producer, but in our articles about each story, we give the actual title shown on screen - except that where the on-screen title is all-capitals, we reduce it to title case. Certain Doctor Who reference books do the same, so we're following the sources. --Redrose64 🌹 (talk) 18:18, 20 October 2024 (UTC)

  The question raised was "differing editorial practices in the British Post Office scandal article". Sounds like a matter of internal consistency, which is different. For all manner of things -- this being one IMO -- we might not need consistency among articles, but it does look bad within articles. Surely we already have a rule addressing that general issue tho? Herostratus (talk) 13:24, 21 October 2024 (UTC)

  I think we don't. In articles on TV series it's common to have expressions like "season 3" and "episode 7", which seem to go against our current wording (use words for numbers below 10). Gawaon (talk) 16:37, 21 October 2024 (UTC)

  It is indeed a matter of internal consistency and it does look bad, as Herostratus says. Within the one article (British Post Office scandal), we have (e.g.) both "Phase 3 hearings" and "Phases five and six". Is there in fact a rule addressing this general issue? -- Jmc (talk) 18:47, 21 October 2024 (UTC)

  From Misplaced Pages:Manual of Style/Dates and numbers#Numbers as figures or words: "Comparable values nearby one another should be all spelled out or all in figures, even if one of the numbers would normally be written differently." Unless you are dealing only with series with fewer than 10 seasons each with fewer than 10 episodes, it is more in line with MOS to give all season and episode numbers in digits rather than words. --User:Khajidha (talk) (contributions) 13:15, 22 October 2024 (UTC)

  True, but series with less than ten seasons aren't all that rare, and there are also miniseries with less than ten episodes. Gawaon (talk) 16:39, 22 October 2024 (UTC)

  Whether or not it's in line with MOSNUM, we frequently – I suspect in the vast majority of cases – give series/season and episode numbers in digits. I've been dipping into Misplaced Pages:Good articles/Media and drama#Television. Articles on individual episodes do routinely begin e.g. " the ninth and final episode of the first season" but with digits in the infobox. Articles on a season/series list episodes using digits, and articles on a show list series/seasons and episodes with digits, regardless of whether there are more or less than ten, in keeping with the examples in Misplaced Pages:Manual of Style/Television#Episode listing. Articles are often titled <show> season <n> where n is a digit, never a word, in accordance with Misplaced Pages:Naming conventions (television)#Season articles. Sampling our WP:Featured articles#Media, I see the same treatment in titles, infoboxes, and listings.I very much doubt that editors would accept changes to those FAs and GAs to bring them into line with MOS:NUMERAL, that FA and GA assessors will start to apply MOS:NUMERAL in such cases, that any move requests would succeed, or that MOS:TV and WP:TVSEASON will be brought into line with the current MOS:NUMERAL. Changing MOS:NUMERAL might be easier. NebY (talk) 08:20, 23 October 2024 (UTC)

  I agree, a small addition to MOS:NUMERAL might be a good thing. Gawaon (talk) 17:00, 23 October 2024 (UTC)

  Your final sentence doesn't follow from your statement. It would be more in keeping with the MOS to give all in words. MapReader (talk) 11:16, 23 October 2024 (UTC)

• Generally concur with EEng and NebY. It's clear that certain conventions adhere strongly to certain things, and these conventions will be readily apparent from the source material about those things. WP is not in a position to impose an artificial WP-invented consistency on them that makes no sense for those familiar with the subject (e.g. referring to "issue number seven" of a comic book or "the three ball" in a game of pool). Where nothing like a consistent convention can be observed for the topic at hand, then MOSNUM already provides us with a default to fall back to: use "one" through "nine", then "10" onward. This is the case with centuries, for example. There is no overwhelming source preference for either "third century BC" or "3rd century BC" in reliable sources. (Books tend to prefer the former, journals use the latter more than books do because journal publishers are more interested in compression/expediency. Scroll through first 10 pages of GScholar resuls here and see how much variance there is, and how frequent the numeral style is compared to "traditional" spelling-out. That said, GScholar searches do include some books as well as journals.) Following our default system, we naturally end up with "third century BC" and "12th century BC". (Of course, our material doesn't perfectly follow this; our editors are human, not robots. Well, mostly.)  — SMcCandlish ☏ ¢ 😼  15:04, 24 November 2024 (UTC)

μs vs us

Which style I should use for micro seconds? Does μs relative to "Do not use precomposed unit symbol characters"? DungeonLords (talk) 04:44, 30 October 2024 (UTC)

The 2 characters "μ" and "s" are just fine. The precomposed symbols advice is to guard against particular fonts that combine them into a single character because many software readers for the sight impaired do not know all of these symbols.  Stepho  talk  04:53, 30 October 2024 (UTC)

But do use μ, not "u". The latter was something of an early-Internet halfassed approach, but we have Unicode now.  — SMcCandlish ☏ ¢ 😼  15:09, 24 November 2024 (UTC)

Day, date month format

Greetings and felicitations. I assume that such constructions as "Wednesday, 24 February" are discouraged, but I can't find it in the text or the this page's archives. (The comma seems unnecessary to me.) May I please get confirmation or refutation? —DocWatson42 (talk) 04:28, 4 November 2024 (UTC)

• MOS:DATEFORMAT and MOS:BADDATE cover the allowed and disallowed formats. Unless the day of the week is vitally important then we leave it out.  Stepho  talk  06:16, 4 November 2024 (UTC)

  This specifically regards the "Hadaka Matsuri" article, and its Konomiya Hadaka Matsuri infobox, which includes the days of the week. —DocWatson42 (talk) 07:40, 4 November 2024 (UTC)

  Ah, the mysterious East. EEng 08:06, 4 November 2024 (UTC)

• Salutations and hugs and kisses to you too.
  • If your question is whether day-of-week should be gratuitously included with dates for no particular reason, the answer is No. That is, if the day-of-week is somehow relevant to the narrative, sure, include it, but otherwise no.
  • Assuming we're in some situation where (per the preceding) inclusion of day-of-week is indeed justified, maybe your question is how to append the D.O.W.
    • If the date is February 24 or February 24, 2024, then without doubt the right format is Wednesday, February 24 or Wednesday, February 24, 2024.
    • According to "Elite editing" (whoever they may be -- search the text "inverted style" on that page), the corresponding answers for 24 February and 24 February 2024 are Wednesday, 24 February and Wednesday, 24 February 2024. To me that does seem right -- Wednesday 24 February 2024 (all run together, no commas at all) seems intolerable.

The question naturally arises as to whether MOS should offer advice on all the above. My answer, as usual, is provisionally No, per WP:MOSBLOAT. EEng 08:02, 4 November 2024 (UTC)

Looking at the article, the date is the 12th day of the Chinese year and the day of the week has no significance. I would remove the day of the week from all those dates in the infobox. For what it's worth, I spent most of the 1990s in Hong Kong/China. Major holidays based on the Chinese calendar treat the day of the week in the same way that we treat the day that Christmas falls on.  Stepho  talk  09:18, 4 November 2024 (UTC)

Okay—will do. Thank you both. ^_^ —DocWatson42 (talk) 09:21, 4 November 2024 (UTC)

The new 18th edition of The Chicago Manual of Style gives advice about commas in dates in ¶ 6.14. When giving examples they mostly give examples with words after the end of the date so the punctuation at the end of the date is illustrated. Some examples:

• The hearing was scheduled for 2:30 p.m. on Friday, August 9, 2024.
• Monday, May 5, was a holiday; Tuesday the 6th was not.

Jc3s5h (talk) 16:56, 4 November 2024 (UTC)

Concur with EEng on avoiding adding a rule about this, as more WP:MOSBLOAT. It's just a matter of basic writing sense, basic comma usage in competent English. Our MoS's purpose is not that of CMoS or Fowler's, trying to answer every imaginable usage question. Just those that have an impact on reader comprehensibility and/or recurrent editorial strife.  — SMcCandlish ☏ ¢ 😼  15:18, 24 November 2024 (UTC)

Spacing with percentage points

A question regarding spacing of percentage point (pp) usage. I have always assumed there is no space between the number and pp (e.g. 5.5pp not 5.5 pp), on the basis that you wouldn't put a space between a number and a percentage sign (5% not 5 %). There is no reference to this in the MOS, but the percentage point article uses it unspaced. It might be good to have it clarified in the MOS as I see regular changes adding spacing, which I am not sure is correct. Cheers, Number 57 23:49, 5 November 2024 (UTC)

• MOS:PERCENT says "omit space".  Stepho  talk  23:54, 5 November 2024 (UTC)

  Perhaps I am missing something, but as far as I can see, it says to omit space when using the percentage symbol (%) but nothing about when using pp? Number 57 00:21, 6 November 2024 (UTC)

  Apologies, I missed the "point" word in your question.  Stepho  talk  01:49, 6 November 2024 (UTC)

• % is essentially a constant factor (.01), but pp is more like a unit so my intuition says it should be spaced. I note that the basis point article uses a space before bp (mostly, anyway). I'll be interested to hear what others think. EEng 18:23, 6 November 2024 (UTC)

  You've got this back to front. Percent (%) is a standard unit symbol and should be spaced, whereas pp is a made up abbreviation, meaning you can put it anywhere you want, space or unspaced. I know MOSNUM says otherwise, which is WP's prerogative. In other words, if we need a rule, let's make one up and apply it, but there's no logic involved. Dondervogel 2 (talk) 21:06, 6 November 2024 (UTC)

• Dondervogel, "Percent (%) is a standard unit symbol and should be spaced". Huh? It's not an ISO unit symbol, is it. No spacing in English, unlike French. On pp, I agree with EEng: space it. Tony (talk) 11:10, 8 November 2024 (UTC)

  Absolutely. When it comes to peepee, always space it . EEng 21:36, 8 November 2024 (UTC)

  Yes, "%" is an ISO standard unit symbol. Dondervogel 2 (talk) 12:45, 8 November 2024 (UTC)

  What is it the unit of? Gawaon (talk) 13:14, 8 November 2024 (UTC)

  Nothing. It's a dimensionless quantity. To the original q: I don't see "pp" used often, in fact rarely. It's probably better written out in full on first use, and if there are subsequent uses, follow the guidance at MOS:ACRO1STUSE. --Redrose64 🌹 (talk) 19:58, 8 November 2024 (UTC)

  It's used widely in election infoboxes where there isn't space to write it out. Number 57 22:25, 8 November 2024 (UTC)

  I will answer Gawaon's valid question in two parts. The first part is a quotation from ISO 80000-1:2009 (emphasis added)

  • In some cases, per cent, symbol %, where 1 % := 0,01, is used as a submultiple of the coherent unit one.
  • EXAMPLE 4
  • reflection factor, r = 83 % = 0,83
  • Also, per mil (or per mille), symbol ‰, where 1 ‰ := 0,001, is used as a submultiple of the coherent unit one.Since the units “per cent” and “per mil” are numbers, it is meaningless to speak about, for example, percentage by mass or percentage by volume. Additional information, such as % (m/m) or % (V/V) shall therefore not be attached to the unit symbol %. See also 7.2. The preferred way of expressing, for example, a mass fraction is “the mass fraction of B is w B = 0,78” or “the mass fraction of B is wB = 78 %”. Furthermore, the term “percentage” shall not be used in a quantity name, because it is misleading. If a mass fraction is 0,78 = 78 %, is the percentage then 78 or 78 % = 0,78? Instead, the unambiguous term “fraction” shall be used. Mass and volume fractions can also be expressed in units such as µg/g = 10-6 or ml/m3 = 10-9.

  Notice the deliberate space between numerical value (e.g., 83) and unit symbol (%). Dondervogel 2 (talk) 22:10, 8 November 2024 (UTC)

  The second part is a partial retraction, quoting from ISO 80000-1:2022, which supersedes the 2009 document:

  • If the quantity to be expressed is a sum or a difference of quantities, then either parentheses shall be used to combine the numerical values, placing the common unit symbol after the complete numerical value, or the expression shall be written as the sum or difference of expressions for the quantities.
  • EXAMPLE 1
  • l = 12 m - 7 m = (12 - 7) m = 5 m, not 12 - 7 m
  • U = 230 ⋅ (1 + 5 %) V = 230 ⋅ 1,05 V ≈ 242 V, not U = 230 V + 5 %

  The space is still there between numerical value (5) and percentage symbol (%), but I could not find an explicit reference to "%" as a unit symbol. I'm unsure how to interpret that change, but I'll report back here if I find further clarification. Dondervogel 2 (talk) 22:16, 8 November 2024 (UTC)

  I found this in NIST Special Publication 811

  • In keeping with Ref. , this Guide takes the position that it is acceptable to use the internationally recognized symbol % (percent) for the number 0.01 with the SI and thus to express the values of quantities of dimension one (see Sec. 7.14) with its aid. When it is used, a space is left between the symbol % and the number by which it is multiplied . Further, in keeping with Sec. 7.6, the symbol % should be used, not the name "percent."
  • Example: xB = 0.0025 = 0.25 % but not: xB = 0.0025 = 0.25% or xB = 0.25 percent
  • Note: xB is the quantity symbol for amount-of-substance fraction of B (see Sec. 8.6.2).
  • Because the symbol % represents simply a number, it is not meaningful to attach information to it (see Sec. 7.4). One must therefore avoid using phrases such as "percentage by weight," "percentage by mass," "percentage by volume," or "percentage by amount of substance." Similarly, one must avoid writing, for example, "% (m/m)," "% (by weight)," "% (V/V)," "% (by volume)," or "% (mol/mol)." The preferred forms are "the mass fraction is 0.10," or "the mass fraction is 10 %," or "wB = 0.10," or "wB =10 %" (wB is the quantity symbol for mass fraction of B—see Sec. 8.6.10); "the volume fraction is 0.35," or "the volume fraction is 35 %," or " φB = 0.35," or "φB = 35 %" (φB is the quantity symbol for volume fraction of B—see Sec. 8.6.6); and "the amount-of-substance fraction is 0.15," or "the amount-of-substance fraction is 15 %," or "xB = 0.15," or "xB = 15 %." Mass fraction, volume fraction, and amount-of-substance fraction of B may also be expressed as in the following examples: wB = 3 g/kg; φB = 6.7 mL/L; xB = 185 mmol/mol. Such forms are highly recommended (see also Sec. 7.10.3).
  • In the same vein, because the symbol % represents simply the number 0.01, it is incorrect to write, for example, "where the resistances R1 and R2 differ by 0.05 %," or "where the resistance R1 exceeds the resistance R2 by 0.05 %." Instead, one should write, for example, "where R1 = R2 (1 + 0.05 %)," or define a quantity Δ via the relation Δ = (R1 - R2) / R2 and write "where Δ = 0.05 %." Alternatively, in certain cases,the word "fractional" or "relative" can be used. For example, it would be acceptable to write "the fractional increase in the resistance of the 10 kΩ reference standard in 2006 was 0.002 %."

  As with ISO 80000-1:2022, there is always a space between numerical value (e.g., 35) and the percentage symbol (%), but no mention of % as a unit symbol. Dondervogel 2 (talk) 22:38, 8 November 2024 (UTC)

  there is always a space between numerical value (e.g., 35) and the percentage symbol (%) – Maybe in NIST-world, but not here on Misplaced Pages (see MOS:PERCENT), so I don't see how any of that helps us with the issue at hand. EEng 23:29, 8 November 2024 (UTC)

  I was correcting a misconception that % is not a unit symbol when it is. At least it was until 2022. I find it best not to leave incorrect statements unchallenged or they take on a life of their own. Dondervogel 2 (talk) 00:24, 9 November 2024 (UTC)

  Um, OK, but you do realize that WP does not follow NIST's advice about spacing it, yes? EEng 00:44, 9 November 2024 (UTC)

  Yep, and I wasn't trying to change that. My contributions have been to

  • correct a factual error (yours)
  • respond to questions from Tony and Gawaon

  I have not weighed in on the main thread regarding percentage points because I don't expect my opinion (based not on NIST's utterings but on the ISO standards on which they are based) to be taken seriously, so why would I waste my e-breath? Dondervogel 2 (talk) 09:41, 9 November 2024 (UTC)

• It is not conventional to space "%" in English. Nearly no publishers do this, and our MoS doesn't say to do this or incidentally illustrating doing this, so don't do this. "pp" here is a unit abbreviation for percentage point ("the unit for the arithmetic difference between two percentages)", so space it. % is not a unit abbreviation/symbol, but a quantity symbol, so it's in a different class. It's more like the ~ in "~5 ml". That the spelled-out equivalent "approximately", like the spelled out "percent", is spaced apart from the numeral is irrelevant.  — SMcCandlish ☏ ¢ 😼  15:24, 24 November 2024 (UTC)

Do we have to convert inches for wheels?

I see people adding conversions to mentions of screen sizes and wheel dimensions - is this really necessary? Even in Germany or New Zealand, automobile and bike wheels are universally referred to by inches; rim diameters are expressly defined in inches in the EU regulations. To me, adding conversions for these types of dimensions adds unnecessary clutter, harming readability for no return whatsoever. I haven't read the entire MOS today, apologies if I missed a mention of these situations.  Mr.choppers | ✎  17:24, 13 November 2024 (UTC)

It looks like sizing bike wheels in inches is not universal. I see many charts in the I-net such as this that use both metric and imperial/American units for bike wheels and tires. Whether the convert template handles them correctly is another issue. Donald Albury 17:43, 13 November 2024 (UTC)

On the matter of wheel sizes, not all are inches. See this post and my reply. Even for a conventional non-Denovo wheel, the dimensions are a bastard mixture: "195/65 R 15" means a tyre that is 195 mm wide on a 15-inch rim. --Redrose64 🌹 (talk) 19:10, 13 November 2024 (UTC)

Yes, there is the Michelin TRX and the Denovo. Just as we wouldn't convert the "195" when we write 195/60 R15, I don't think we ought to convert the diameter either. I would treat all of these tire dimensions as one would nominal measurements, rather than inserting unnecessary templates. Bicycle tires, meanwhile, proved more varied than I was aware of.  Mr.choppers | ✎  04:33, 14 November 2024 (UTC)

I agree with Mr.Choppers on this subject. I think wheels sizes on cars are a compromise between the USA and the rest of the world. There are metric rims on older vehicles but pretty rare on new vehicles. Avi8tor (talk) 11:40, 14 November 2024 (UTC)

@Avi8tor: - I was actually triggered by you converting screen dimensions, but five minutes online showed me that the modern world has indeed begun dropping the use of inches for screens. My gut was wrong.  Mr.choppers | ✎  13:36, 14 November 2024 (UTC)

Many people around the planet know only millimetres, so it makes sense to have both. I notice in France the data information on television screen size have it in both inches and millimetres. Avi8tor (talk) 17:57, 16 November 2024 (UTC)

• I agree with Aviator, who didn't mention that aviation uses "feet" for altitude—needs conversion in my view. Tony (talk) 07:30, 22 November 2024 (UTC)

  I thought that "feet" used for altitude is not a measure of distance but of pressure, so perhaps it should be converted to pascals first. I'm not saying one should not then convert to metres too - only that the conversion would need some care. Dondervogel 2 (talk) 22:06, 22 December 2024 (UTC)

RfC Indian numbering conventions

Most participants also generally agreed with SchreiberBike's conditions (or a variant) - Always 1) link it on first use, 2) include what it is a measure of (rupees can not be assumed), 3) also include conventional numbering, and 4) allow it only in articles about the subcontinent.

However, this RFC suffered from structural issues that a precise wording isn't agreed on yet. Any changes from status quo should go through a clearer future discussion or RFC on just that.

The following discussion is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

I am revisiting an issue that was last brought up 6 years ago here and settled without a strong consensus.

I think we should avoid using Indian numbering conventions unless it is needed for context. For instance, if we want to list the box office take of an Indian movie, don't use "crore", use "millions". This isn't about disrespecting a culture, it's about using internationally favored notation and unit conventions. We should use "millions" instead of "crore" for the same reason we favor meters over feet. There is no reason that India-related articles should be an enclave of Indian conventions. People who are not Indian will struggle with these things, it will weaken Misplaced Pages's role as an information tool for everyone.

This is not the same thing as currency. It is appropriate to list an Indian movie's box office take in rupees. Providing a US$ conversion is optional, but a good idea since the US dollar is widely used around the world as a reserve currency. But write it as "millions of rupees", not "crores of rupees". Kurzon (talk) 16:38, 16 November 2024 (UTC)

What's the common usage in english? GoodDay (talk) 16:45, 16 November 2024 (UTC)

I don't think most people in the US understand what "crore" is, and would not recognize it as part of the English language. The online Merriam-Webster dictionary says it means ten million, specifically, a unit of value equal to ten million rupees or 100 lakhs. I think most people in the US would not even understand that a currency is being mentioned.

--Jc3s5h (talk) 17:00, 16 November 2024 (UTC)

Not just people in the US. Nobody outside of India can be expected to know what a crore is. Kurzon (talk) 17:15, 16 November 2024 (UTC)

We use meters over feet? Where?

In non-scientific articles with strong ties to the United States, the primary units are US customary (pounds, miles, feet, inches, etc.)

Aaron Liu (talk) 17:50, 16 November 2024 (UTC)

You get extra points for saying "US customary" and not "Imperial". 😉 Isaac Rabinovitch (talk) 18:20, 16 November 2024 (UTC)

imperial :3 Aaron Liu (talk) 18:30, 16 November 2024 (UTC)

I agree with Kurzon, do not use "crore", use "millions". Misplaced Pages is for a worldwide audience. Avi8tor (talk) 18:03, 16 November 2024 (UTC)

Kinda like how US units are used for US articles, I don't see the harm in using "crore", and it's way more work to manually convert to millions every time a member of India's vast diaspora in the Global North adds "crore" to an article, not knowing our ManualOfStyle. Aaron Liu (talk) 18:19, 16 November 2024 (UTC)

Except we don't favor meters over feet — we use both. That's what the Convert template is for.

Speaking as a non-Indian, who can never remember what how many is a "crore": I'm fine with it, as long as the international unit is also used. Isaac Rabinovitch (talk) 18:18, 16 November 2024 (UTC)

We already make an exception for feet. I see no good reason for barring a second exception. State in crore and convert to a unit non-Indians can understand (millions of rupees?). Dondervogel 2 (talk) 20:48, 16 November 2024 (UTC)

The article for the French movie Les Visiteurs lists the budget as "9.5 million", using a point as a decimal separator. In France they use commas for this, ie "9,5 million". We don't use the French notation convention for France-related articles. Kurzon (talk) 17:14, 16 November 2024 (UTC)

Is it the French style to use that notation in English? A different unit elicits way less confusion than a reversed decimal separator meaning anyways. Aaron Liu (talk) 17:50, 16 November 2024 (UTC)

• Bad RFC; see WP:RFCNEUTRAL and the rest of the guidance there too. Unsurprisingly, this has just started out as a disorganized discussion that doesn't resemble a normal RFC...you might want to just remove the tag, get some feedback, and then start a proper one in a bit (separate subsections for discussion and survey are pretty helpful too). 35.139.154.158 (talk) 18:21, 16 November 2024 (UTC)

  @Kurzon: I did advise you not to jump straight for a full-blown thirty-day formal RfC without first exhausting the suggestions at WP:RFCBEFORE. --Redrose64 🌹 (talk) 18:39, 16 November 2024 (UTC)

This RfC is clearly improperly formatted, Kurzon; thank you to our unregistered friend for pointing this out.

Oh come now. It seems to be developing nicely, I doubt that any editors are swayed by the wording. it's not perfect but perfect is the enemy of good and its good enough. Herostratus (talk) 04:47, 29 November 2024 (UTC)

That reply was before the appropriate discussion centers were notified and before discussion started to develop. It's not just formatting; it's that there was no prior discussion. Now we're effectively having both at the same time, especially when an informal discussion could've resulted in consensus without a time-consuming process. Aaron Liu (talk) 16:08, 29 November 2024 (UTC)

Consistency and clarity to our international readership are valid arguments in favor of prohibiting "crore" and "lakh". However, Aaron Liu makes good points about the fact that we allow local variation in articles with local ties, e.g. all of ENGVAR. I am unsure where I sit on this issue. I would like to see some Indian editors weigh in on this. Toadspike 19:58, 16 November 2024 (UTC)

I also agree that crores are too obscure (as are lakhs), with use limited to South Asia. Feet and inches, while retrograde and infinitely useless, were used across most of the world not many generations ago. The major unit in Japanese is 万 (man), which is 10,000, but we do not use that because most people wouldn't know it. Engvar is somewhat different: we cannot avoid choosing between "colour" and "color", for instance, whereas we can easily write the globally recognized "millions" rather than crores. As for User:Aaron Liu's comment: if someone adds crore, it will be there until fixed – it's not pressing enough of a problem to hunt down every instance.  Mr.choppers | ✎  20:03, 16 November 2024 (UTC)

Good point about 万 – I completely forgot that Chinese has similarly different units. I think that settles it – either we allow crore and lakh alongside the East Asian 万 and 亿 (which I think is ridiculous) and an infinite variety of customary units, or we allow none.

(Two counterarguments: 1. This is a slippery slope argument, which is a logical fallacy. To which I say no, we can't give only one country special treatment, we ought to be fair. 2. The East Asian units are non-Latin characters and thus more impractical than "crore". This is true.) Toadspike 20:15, 16 November 2024 (UTC)

On the subject of the myriad, I agree with Toads's second counterargument: there is no widely-recognized English translation for the unit in some "East Asian variant" of English; they just convert it to short scale in translations.

we cannot avoid choosing between "colour" and "color", for instance, whereas we can easily write the globally recognized "millions" rather than crores.

Part of my argument is that "crore" vs long scale is basically the same thing as "colour" vs "color": anonymous editors are going to add them. A ton. Expecting people to not use crore is like expecting people to not spell "colour". It's not pressing enough to hunt down, sure, but you're going to see sweet summer children adding crore into crore-free articles again and again and again. Aaron Liu (talk) 01:14, 17 November 2024 (UTC)

By the way, I've left a (neutrally-worded) note about this discussion at the Talk page of WikiProject India. Toadspike 20:16, 16 November 2024 (UTC)

• Don't allow crore. In the interest of making articles understandable to a wider audience, we already do this for the decimal marker (.) and separator for groups of 3 digits (,) as previously mentioned. We also require the use of short-scale even though long-scale hasn't entirely died out in the British Isles. Jc3s5h (talk) 21:16, 16 November 2024 (UTC)

  The decimal marker and long/short scale have a much better reason for their ban: The symbols they use have very different meanings outside of their local context, while crore, lakh, etc. do not. Aaron Liu (talk) 01:04, 17 November 2024 (UTC)

• Don't allow crore Per WP:COMMONALITY. This is not comparable with US v metric units where we report both - that is just a case of which is primarily reported. Furthermore, imperial units have a relatively recent historical usage across English. It is not like other issues of ENGVAR such as colour v color or ise v ize that do not affect understanding. For an international encyclopedia, using vocabulary common to all varieties of English is preferable - to the point of being paramount. Cinderella157 (talk) 22:38, 16 November 2024 (UTC)
• Allow crore, lakh and Indian numbering system, but always, 1) link it on first use, 2) include what it is a measure of (rupees can not be assumed), 3) also include conventional numbering, and 4) allow it only in articles about the subcontinent. SchreiberBike | ⌨  23:13, 16 November 2024 (UTC)

  I agree with all of these conditions. While I remain somewhat ambivalent on the use of “crore” in general, we must provide enough context for non-Indian readers to understand them. Toadspike 13:56, 17 November 2024 (UTC)

• Allow crore, lakh per SchreiberBike, and with the same caveats. Dondervogel 2 (talk) 00:03, 17 November 2024 (UTC)
• Allow ScreiberBike, per my comments above. Aaron Liu (talk) 01:20, 17 November 2024 (UTC)
• Allow ScreiberBike. But see also Misplaced Pages:Manual of Style/India-related articles#Basic_India_conventions - "You may use the Indian numbering system of lakhs and crores but should give their equivalents in millions/billions in parentheses" — Preceding unsigned comment added by Asteramellus (talk • contribs) 00:30, 18 November 2024 (UTC)
• Allow crore, lakh and Indian numbering system, but always, 1) link it upon first use in every section where it appears, 2) include what it is a measure of (rupees can not be assumed), 3) also include conventional numbering using template {{convert}}—i.e., don't convert yourself, and 4) allow it only in articles about the subcontinent. Mathglot (talk) 23:11, 18 November 2024 (UTC)

  Hm; was very surprised to notice that the {{convert}} template does not currently support lakhs and crores. I think it should, and started a discussion about that. If you wish to comment, please go to Module talk:Convert#Indian numbering system: lakhs and crores. Thanks, Mathglot (talk) 23:50, 18 November 2024 (UTC)

  The convert template converts units, like feet and metres. Crores and lakhs are not units, but multipliers. It would be like convert being used to convert between hundreds, thousands, millions etc. --Redrose64 🌹 (talk) 22:52, 19 November 2024 (UTC)

  The {{lakh}} and {{crore}} templates make more sense than overloading {{convert}}.  Stepho  talk  23:02, 19 November 2024 (UTC)

  I agree with SchreiberBike and others; "crores" and "lakhs" can always be used to add colour/color to an article as long as those requirements are met.  Mr.choppers | ✎  04:50, 20 November 2024 (UTC)

• Do not allow. This is not the same as variations of English in wide use where there are multiple widespread usages (color or colour). While SchreiberBike's conditions for use are reasonable, I would say that the standard international measurements should always be primary and subcontinent-specific numbering as a secondary only in articles about the subcontinent. Avgeekamfot (talk) 09:50, 20 November 2024 (UTC)

  What does "widespread" mean? Aaron Liu (talk) 12:17, 20 November 2024 (UTC)

• Allow, but always ... exactly as Mathglot laid out above (other than, per Stepho-wrs and Redrose64, {{convert}} isn't actually the right template, or at least isn't presently). I would add a further caveat that these traditional Indic units (technically, multipliers) should be given secondarily not primarily, but I could live without that.  — SMcCandlish ☏ ¢ 😼  11:55, 21 November 2024 (UTC)
• Allow when appropriate, under conditions set out by ScreiberBike. Also, this RfC does not meet WP:RFCNEUTRAL. ThatIPEditor 02:18, 22 November 2024 (UTC)
• Do not allow crore et al. It's not only native English-speakers who haven't a clue what it means when reading India-related articles; it's non-natives too. Tony (talk) 07:32, 22 November 2024 (UTC)

  I don't get what native/non-native speakers have to do with the issue. Aaron Liu (talk) 12:21, 22 November 2024 (UTC)

• Allow per ScreiberBike for South Asian articles. Johnbod (talk) 17:29, 22 November 2024 (UTC)
• Allow All Indian academic/professional textbooks and all Indian reliable sources, with few exceptions for specific conditions, use lakhs/crores when denoting INR and millions/billions when denoting foreign currencies. Not allowing is not an option, unless editors want to disregard Indian readers. Using X million rupees is almost as uncommon in India as using Y lakh dollars. My suggestion -- for articles that use {{Use Indian English}} force editors to 1) link it on first use, 2) include what it is a measure of (rupees can not be assumed) with Indian comma separator at 00 after thousands and for articles that don't use that template force editors to always use millions/billions with 000 comma separator. — hako9 (talk) 03:01, 23 November 2024 (UTC)

  Strongly disallow use of Indian comma separator. That would only serve to confuse. We don't permit a French comma separator on English Misplaced Pages. The Indian comma would be much worse. Dondervogel 2 (talk) 09:11, 23 November 2024 (UTC)

  I concur entirely with Dongervogel_2 on this side-point; we cannot mix-and-match numeric separator styles. We've repeatedly had debates in the past about permitting "," instead of "." as a decimal point to suit the preference of some subset of readers, and the answer is always firmly "no", so this isn't going to be any different. I'm not a professional researcher in this area, but I have looked into the matter in the course of various style debates, and the evidence clearly shows Indian publications using "Western" number formatting systems (or whatever you want to call them) on a regular basis, though often alongside the Indic krore, etc., system. That is, it's just not plausible that English-using readers in/from India have any difficulty understanding our numeric material, especially after the rise of the Internet has exposed them to content from all over the world since the mid-1990s and pretty much ubiquitously since the early 2010 with the rise of mobile data.  — SMcCandlish ☏ ¢ 😼  14:49, 24 November 2024 (UTC)

  “it's just not plausible that English-using readers in/from India have any difficulty understanding our numeric material …” Of course the same could be said of American readers and the spelling of ‘colour’. — HTGS (talk) 17:41, 28 November 2024 (UTC)

  What isn't the same is how many editors will add "colour" into articles while most wouldn't add numbers in the Indian system. Aaron Liu (talk) 18:30, 28 November 2024 (UTC)

  I’m genuinely not sure what your point is? Editors are more likely to (erroneously) change spelling to ‘colour’, so that gives them more grounds for the MOS giving them parity with American English? I know we should be realistic about what we can control, but I don’t love that logic. — HTGS (talk) 03:18, 29 November 2024 (UTC)

  Yes, that or add spelling that says "colour" is what I'm saying. Aaron Liu (talk) 04:03, 29 November 2024 (UTC)

  Like I would campaign for navboxes to be placed in the "see also" section if it weren't so widespread and unduly investative to correct. The corrections for disallowing crore are the same thing to me. Aaron Liu (talk) 04:11, 29 November 2024 (UTC)

  On this attempt at a color false analogy: "What isn't the same" even more pertinently is that the cases aren't parallel in any way. Crore and lakh are not barely noticeable spelling differences of an everyday word used the same way in every single dialect of English; they're a radically different system of approaching large-ish numbers. There is no audience capable of reading en.wikipedia for whom either colour or color is impenetrable. If HTGS's pseudo-analogy is intended to suggest that ENGVAR should be undone on the same basis that we would rejecte or further restrain use of crore and lakh, that doesn't work since they're not actually analogous at all, plus the fact that not a single element of MoS is more dear to the community than ENGVAR; it is never, ever going away. If HTGS isn't actually suggesting we get rid of ENGVAR but is instead trying to suggest that opposition to crore is pretty much the same as advocating the death of ENGVAR, that's not cogent either, for the same false-analogy reason plus scoops of slippery slope, overgeneralization, and argument to emotion fallacies plopped on top. Aaron Liu's original "what isn't the same" point is that most editors will use color or colour as contextually appropriate in our content, yet very few will ever add lakh or crore to an Indic-connected article. That could be argued to be suggestive of a de facto community consensus already existing against those units' use at en.wikipedia. While it's worth considering, it's clouded by WP:SYSTEMICBIAS in that a comparatively small percentage of our editors are from India or its immediate environs, so the statistics are probably not usefully comparable even if they could be gathered with certainty. I would suggest that the reasons to rarely use crore/lakh and to always convert when used at all, has to do with end-reader comprehensibility, not with editor preference or usage rates.  — SMcCandlish ☏ ¢ 😼  12:54, 23 December 2024 (UTC)

  Because, the fact is, we aren’t using varieties of English solely to ensure accuracy or intelligibility. They are also being used to avoid recreating the Anglo-American hegemony that exists in published English, and to foster a connection in the community with the most interest in the subject. — HTGS (talk) 18:05, 28 November 2024 (UTC)

  This is not MakeLocalsAsHappyAsPossiblePedia or EngageInCrossCulturalFeelGoodBackscratchingPedia or RightGreatWrongsPedia. It may be unfortunate in some sense that a "Western" (now globally internationalized) enumeration system dominates nearly everywhere (with arguably more benefits than costs), but it is a fact. And it has nothing to do with "Anglo-American" anything, being the same system used by the French and the Russians and the Japanese and so on, and predating both America and England and even the English language, going back to ancient Eurasia very broadly, from the Rome to China. (There's an incidental British correlation of course: it was largely the English, along with the Dutch, who pushed this system in India. That makes it socio-politically and emotively connected to India–UK and Indian–Western relations, but it is not an Anglic counting system and we are not to be confused by sentiment.) More to the point, the "job" of this site is to communicate clearly with as many English-competent readers as possible. The simple fact is that virtually no one outside of the Subcontinent and nearby islands (plus first-generation emigrées therefrom), think in or even understand lakh and crore; meanwhile pretty much everyone in India and thereabouts also understands millions, and hundreds of thousands, even if it is not their immediate mental model and they have to convert a bit in their heads, like Americans with metric units. There is no bothsides-ism to be had here; the sides are not equivalent. Finally, it is not the goal of our articles on Indic culture, history, geography, economics, etc., to appeal to and primarily serve the interests of people in South Asia, but everyone. For this reason, I'm supportive of retaining the permissibility of crore and lakh in relevant articles as long as they are always converted into the now globally prevalent enumeration system, and usually with that first unless there's an important contextual reason to use lakh/crore first. Best of both worlds: everyone gets to understand the material, and Indic numbering is not deleted. It's pretty much the same situation as American customary ("imperial") units of measurement: most of the world doesn't use or understand them, but we should not ban them, just always convert them to metric. (The only difference I can see is "wiki-political": our American editorial and read bases are so large that it would be very difficult to get consensus to always put American units second after metric even in articles about American subjects. That really should be the rule, but it'll be hard to get there.)  — SMcCandlish ☏ ¢ 😼  12:54, 23 December 2024 (UTC)

• Do not allow crore - I am not convinced that this word is actually English, and this is the English-language wikipedia. It seems that this is a foreign word that is used alongside English in areas that have ties to the language this word is from. Even in these areas, it seems that English speakers there fully understand what "millions", "thousands", etc mean, and there have been attestations linked above where they use both, presumably to help English speaking people understand what number is being referred to. My perspective here is colored by being an American expat living in Japan... in day-to-day speech, I will sometimes mix the languages and say "Oh, this costs 3 man yen." But I am under no circumstances thinking that "man" meaning "ten thousand" is English. I'm using another language's word. That's what it looks like they are doing here. Fieari (talk) 07:01, 28 November 2024 (UTC)

  As an alternative, I would also accept allowing crore only if the "millions" number is included alongside it. Fieari (talk) 07:28, 28 November 2024 (UTC)

  "Gumption" is borrowed from Scots; it is English. "Chutzpah" is borrowed from Yiddish; it is English. "Powwow" is borrowed from East-American indigenous language; it is English. "Crore" is borrowed from Hindustani; it is Indian English. All of the above are attested by dictionaries, while "man" to mean myriads is not. Aaron Liu (talk) 18:28, 28 November 2024 (UTC)

• Allow crore - my gut feeling is to disallow it because it is not English as understood by the majority of English readers (including native speakers from UK/US/Australia/etc and second language speakers from China/S.America/Europe/etc). However, crore and lakh are words that Indians practically think in even when speaking English. We have a similar problem where an article is marked as British English and has 99 occurrences of "litre" - an American will still add new stuff with "liter" because it is so naturally to them. In the same way, we will be pushing it up hill trying to get them to stop. So, we should let them use it in articles related to the Indian region but never on anything outside that region. Each first usage should link to crore and lakh so that the few non-Indian region readers have a clue what's going on. I would not bother with conversion to millions - once you learn that they are just putting 0's at the end it becomes easy enough in a short time and conversions just clutter up the article. But do not allow grouping like 1,00,000 under any circumstances. Stepho  talk  02:41, 29 November 2024 (UTC)
• Don't allow crore. If there are people who don't know what "million" is, well some level of literacy is required here, yes. As to "link on first use", no, links are supposed to be "here's some extra/more detailed info about the subject if you want" not "you need to interrupt the flow of your reading and go off the page to understand this word". Herostratus (talk) 04:57, 29 November 2024 (UTC)

  Actually that's exactly what links are for. Readers who know the general topic well can just read an article straight forwardly. But readers new to the general topic are likely to come across words they don't know yet and can follow the links to learn. Eg, in car articles we often talk about the camshaft. If you are new to the detailed study of cars then you can follow that link and then return later.  Stepho  talk  06:09, 29 November 2024 (UTC)

  And if anybody thinks that a politely worded MOS rule will stop them adding crore and lakh then consider that at https://en.wikipedia.org/search/?title=Nissan&diff=1256595427&oldid=1256557060 somebody added a MDY style date in spite of the article having 186 references in DMY style. I fix these (in both directions) practically daily. People do whatever comes natural and do not consider that any other way even exists.

  But I do feel a little better after my vent :)  Stepho  talk  11:35, 29 November 2024 (UTC)

  +1 and it’s worth reiterating that most advocates here are suggesting that the Indic value should always be “translated” into a Western value in parentheses, so most naïve readers would still be able to parse the article without following the link. — HTGS (talk) 06:21, 29 November 2024 (UTC)

• Do not allow crore—India-related articles are for international readership. No one outside the subcontinent is familiar with crore. It is a disservice to readers to allow it. Tony (talk) 06:24, 29 November 2024 (UTC)

  If they are not familiar with crore they can read the conversion to millions. And if they also want to learn about crore they can click on the link. I see no disservice. Dondervogel 2 (talk) 12:49, 29 November 2024 (UTC)

  Perhaps some are not aware but English Misplaced Pages is heavily used in India. The Top 50 Report from 2023 had five items about Indian movies and movie stars. The latest week's most viewed Top 25 had 2024 Maharashtra Legislative Assembly election and Kanguva. According to Indian English there are 128 million English speakers there. If we say to basically never use crore and lakh, we are sending a discouraging, even insulting, message to many of our readers and editors. SchreiberBike | ⌨  13:51, 29 November 2024 (UTC)

• Allow in articles with strong ties to India, provided that the conversion is shown at first use. Hey, we could even write In non-scientific articles with strong ties to the United States India, the primary units are US customary (pounds, miles, feet, inches, etc.) multipliers are Crore and Lakh. See sauce for the goose. Also, it is very relevant that a huge fraction of en.wiki readers are Indian. "ccording to a 2011 census, 10.2% of the Indian population speaks English. This figure includes all Indians who speak English as a first, second, or third language. 10% of India's population is approximately 145 million people." Twice as many as in the UK, half as many as in the US. --𝕁𝕄𝔽 (talk) 11:49, 29 November 2024 (UTC)
• Allow only with linking and conversion as per Mathglot. The most practical solution for both Indian and non-Indian readers. Chaotic Enby (talk · contribs) 23:41, 8 December 2024 (UTC)

Discussion

Maybe this can be solved technologically so that every user sees numbers in the way they are accustomed to? Alaexis_¿question? 20:43, 8 December 2024 (UTC)

This could be done for logged in users, but the vast majority of readers are not logged in with an account. Similar solutions have been proposed for date style and variety of English, but they won't work. SchreiberBike | ⌨  20:50, 8 December 2024 (UTC)

Which era?

I'm inviting fellow editors to figure out whether Religious perspectives on Jesus should use BC / AD or BCE / CE. The issue is that the article mixes eras and when I went back to see which was first, I saw it originally used "BC/BCE" and it stayed like that for years. The thread: Talk:Religious perspectives on Jesus#BC BCE AD CE. Thanks! — Preceding unsigned comment added by Masterhatch (talk • contribs)

MOS:ERA applies so status quo ante should apply. (FWIW, Judaism and Islam have religious perspectives on Jesus of Nazareth, so the neutral style seems entirely appropriate.). --𝕁𝕄𝔽 (talk) 00:18, 22 December 2024 (UTC)

Agreed on the last part. As for the procedural matters, all of our MOS:VAR principles ultimately default/fallback to the style used in the first non-stub version that used one of the competing styles, if consensus fails. MOS:STYLEVAR is the general principle, the root rule: Don't change from one acceptable style without a very good reason. If there is or you expect resistance, discuss to establish consensus. If you don't get consensus for your change (i.e., there is consensus against you), it stays the status quo ante. If there's no consensus on which would be better (which is often the case and likely the one in this case), then use the version established earliest. For particular things covered by MOS:DATEVAR, MOS:ERA, MOS:ENGVAR, WP:CITEVAR, we simply reiterate this principle and process more topically, and these ones also basically resolve to an additional rule: don't change that particular kind of style without establishing consensus first even if you're sure you've got a good reason and don't think there should be resistance.

The STYLEVAR process actually sometimes (namely when there's clearly no firm consensus in favor of the status quo ante, either) overrides the usual Misplaced Pages status quo ante principle, which in practice amounts to "fall back to whatever the discussion closer thinks is more or less a pretty long-term status quo". That usually works for a lot of things, but for these "I will win my Holy Style War or die trying" tedious cyclic bikeshedding typographic disputes, it has proven unworkable, because the dispute lives on and on, simply shifting in stages to: what constitutes a status quo; how long is long enough; whether interruptions in the use of the alleged status quo have reset its tenure; whether this *VAR-imposed consensus discussion was followed when the alleged status quo was imposed; if not, then whether that imposition pre-dated STYLEVAR requiring it; and yadda yadda yadda. There's just no end to it, because it's too often a super-trivial but deeply obsessive PoV-pushing exercise grounded in prescriptivist emotions (mixed sometimes with nationalist, or socio-politically activistic, or my-profession-vs.-yours, etc.). The style-war-ending default of falling back to the first major edit that established one of the competing styles is arbitrary (in both senses), but it is the end of it, and we move on to something more productive.

For this particular article: If "it originally used 'BC/BCE'" in the original post isn't a typo, and really does mean that the style was mixed from day one, then that's a rare edge case, and JMF's "status quo ante should apply" is probably the only reasonable approach. (Even from an excessively proceduralist viewpoint: If STYLEVAR and its application ERAVAR impose an overriding principle that in this case cannot actually be applied, then the default necessarily must be the normal Wikipedian status quo ante principle, even if for matters like this it tends to lead to re-ignition of the dispute again in short order. Not every solution is perfection.)  — SMcCandlish ☏ ¢ 😼  12:02, 23 December 2024 (UTC)

But what would be the status quo ante in this case? Surely you can't mean the mixed BC/BCE style? Gawaon (talk) 08:56, 24 December 2024 (UTC)

Four questions

1. Can 24-hour clock be used in articles with strong ties to United States (I have seen no US-related articles with 24-hour clock) such as: "The Super Bowl begins at 18:40 ET?
2. Can 12-hour clock be used with UTC time?
3. How are primary units of an article determined if the article has strong ties to both US and Canada, as Canada-related articles always use metric units first? For example, Great Lakes is such an article, and it currently uses imperial units first, but it would be more logical to use metric units first as a Canada-related article.
4. Why mixed units are not used with metric units? Why it is either 1.33 m or 133 cm, but never 1 m 33 cm? --40bus (talk) 23:04, 21 December 2024 (UTC)

   I'd add a fifth question: why does Misplaced Pages not use ISO dates, i.e. yyyy/mm/dd? They are becoming more common internationally. Skeptic2 (talk) 00:02, 22 December 2024 (UTC)

   1. I wouldn't recommend it.
   2. Probably?
   3. That should be decided on a case-by-case basis.
   4. No benefit for the additional visual or semantic complexity; that's part of the appeal of the metric system, right?
   5. English-language sources never use this format, and the English Misplaced Pages bases its style on that of other English-language media.

   Remsense ‥ 论 00:58, 22 December 2024 (UTC)

   You write "English-language sources never use this format", but this is untrue. ISO date format is widely used in scientific publishing and it is standard in aviation and for machine processing. Have a look at the Misplaced Pages entry List of date formats by country. You might be surprised.Skeptic2 (talk) 23:35, 22 December 2024 (UTC)

   I personally use ISO format on my devices; if it helps, you can replace "never" with "almost never". Remsense ‥ 论 23:36, 22 December 2024 (UTC)

1. MOS:TIME says 12 and 24 clocks are equally valid. It's just that the majority of native English speakers use 12 hour clocks, so they choose to use 12 hour clocks. If you create an article (or are the first to mention times within an existing article) then you can choose. Don't change an existing article from one to the other. With the possible exception of US Army articles, you may get kick-back from readers not familiar with the MOS. See the WP:JUSTDONTLIKEIT essay.
2. UTC is an offset. It is a separate question from how you format that time. UTC can be used with either 12 or 24 hour clocks. See MOS:TIMEZONE but it doesn't actually say much.
3. Primary units are based on strong ties to a country. If you have multiple countries with a mix of units then you have multiple weak ties and no strong ties. Therefore we default to metric first, as per WP:UNITS. Only articles with strong ties to the US and UK get to use imperial units first.
4. A major benefit of metric is that we can change from m to cm to mm to km just by shifting the decimal point. Splitting it into 1 m 33 cm makes that harder and is now rarely used in metric countries. It was more common in my country of Australia during the first 20 years after metrication when we copied our old imperial habits but it fell out of favour and we now universally say 133 cm, 1.33 m or 1330 mm as appropriate. Countries using imperial units tend to use split units because it is so hard to convert miles to feet, gallons to ounces, etc in your head.
5. ISO 8601 dates are allowed in limited cases (mostly references and tables where space is limited). It is not used in prose because it is not yet common for native English speakers to use this in their day-to-day lives. Note that any other purely numeric format is strictly disallowed. See WP:DATEFORMAT  Stepho  talk  01:09, 22 December 2024 (UTC)

   (In terms of accuracy in my own answers, 2 out of 5 ain't bad right?) Remsense ‥ 论 01:11, 22 December 2024 (UTC)

Being OCD helps 😉  Stepho  talk  01:58, 22 December 2024 (UTC)

I'm unsure how to medicalize it, but I'm certainly obsessive and compulsive, and it only helps somewhat! Remsense ‥ 论 02:00, 22 December 2024 (UTC)

Answering #2 and #4 only

• 2. No. The clarity of UTC is obtained only with a 24-hour clock.
• 4. You could write 1 m + 33 cm if you want, but why make life so complicated? The plus sign is needed because without it a multiplication is implied (1 m 33 cm = 0.33 m).

Dondervogel 2 (talk) 07:43, 22 December 2024 (UTC)

The answer to Q2 will depend at least in part on whether UTC was chosen because it's local time or because it's the international time standard. It would make no sense to allow the 12-hour clock for events in London between March and October, but ban it for events between October and March. Kahastok talk 14:56, 22 December 2024 (UTC)

@Kahastok: I don't get this reply. The time of an events in London is given according to BST (= UTC+01:00) in summer and according to GMT (= UTC+00:00) in winter – normally without either qualification stated unless it is the weekend when the time changes. It the time zone matters (for an internationally televised live event, for example), the time is normally given both ways: in the local and in the international notations. (Or did you not realise that GMT is just another timezone, not a synonym for UTC though often used that way, especially by seafarers.) 𝕁𝕄𝔽 (talk) 15:58, 22 December 2024 (UTC)

I don't accept that UTC is always distinct from GMT. Usually there is not enough information about the reasons a particular author used one or the other abbreviation to tell if the author intended a distinction or not. Jc3s5h (talk) 17:15, 22 December 2024 (UTC)

Well OK, if we're going to insist that the sub-second formal discrepancy between GMT and UTC is somehow vitally important (despite all evidence to the contrary) the split hairs do not count in the case of Lisbon, where the local time in the winter is defined as UTC, rather than just being UTC in practice. Why would we say that a winter event in Lisbon has to use the 24-hour clock, but a summer event does not?

For the record, I don't think I have ever seen a time recorded at 17:00 GMT (17:00 UTC) and I would like to see examples of that usage. Kahastok talk 19:48, 22 December 2024 (UTC)

and you never will, because it would be pedantic in the extreme. In fact most timestamps you see anywhere will be just one of (a) not stated, because it is for local use; (b) the local timezone (notation adjusted according to whether or not DST is in operation); (c) a poor third at "front of house" (excepting worldwide online systems like Misplaced Pages), UTC time. Use of both (b)&(c) at once is very rare, vanishingly so if b=GMT or even BST.

Jc3s5h is certainly correct for use of GMT in almost all sources pre this century and still quite a few recently – it will take 50 years to fall out of use as a world standard, I suspect. Perhaps more ... who would think that there are still people who insist on chain (unit)s?

Just to be clear, I am not proposing that we introduce an MOS rule mandating any notation. Just clarifying that GMT is not a synonym for UTC. 𝕁𝕄𝔽 (talk) 20:25, 22 December 2024 (UTC)

If you weren't aiming to be pedantic in the extreme, why bring it up? And in particular, why claim - specifically in the context of GMT vs UTC - that the time is normally given both ways: in the local and in the international notations in situations where time zone matters? 'Kahastok' talk 21:22, 22 December 2024 (UTC) s

My 2c:

1. Not just English speakers, anybody with an analogue wristwatch display does so. BUT (in the UK at least), train, bus and plane timetables are invariably shown using 24 hour clock notation. Basically, anywhere that it matters, where ambiguity might arise.
   1. The application of am and pm to 12:00 noon and midnight seems to be a perennial source of dispute, see 12-hour clock#Confusion at noon and midnight. Good luck with writing an MOS guidance that avoids that minefield.
2. I was about to declare that UTC offsets never exceeds 12:00 so crisis, what crisis? But I think there is a UTC+13:00 on one of the Pacific islands near the date line?
3. Stepho, the use of imperial units in the UK is dying out, literally as well as metaphorically since they are preferred by the older generation. Don't be fooled by the rail-fans insistence on chains – all UK railway engineering has been done in metric since 1975. So no, MOS:RETAIN applies to UK articles too. Except articles under the aegis of Misplaced Pages:WikiProject UK Railways, of course. --𝕁𝕄𝔽 (talk) 15:43, 22 December 2024 (UTC)
4. I concur with Stepho's reply.
5. Anybody who puts their boiled egg upside down should be taken out and beheaded immediately! (aka, ask us again in a 100 years time but it is a non-starter right now.)

Here endeth the lesson. 𝕁𝕄𝔽 (talk) 15:40, 22 December 2024 (UTC)

You say, the use of imperial units in the UK is dying out. Is it therefore your contention that the British (or even just younger British people) all use kilometres really and just put miles on all the road signs to confuse foreigners? Kahastok talk 19:48, 22 December 2024 (UTC)

Because of the multitude of road signs and therefore the huge cost of moving from miles, that one will likely never change. In most other fields, however, there has been a progressive move toward using metric measurements in the UK over recent decades. MapReader (talk) 04:05, 23 December 2024 (UTC)

Never mind that other countries that went metric changed our road signs just fine.  Stepho  talk  05:09, 23 December 2024 (UTC)

Dondervogel 2, why must UTC be 24 hours? UTC is just a timezone. Technically it is no different any other timezone and the other time zones can use either 12 or 24 hour times as they wish. Of course, UTC is a little special in that it gets used as the "universal" timezone. And when somebody wants to be unambiguous they tend to use 24 hour time. And when they want to be really unambiguous they write it as UTC rather than local. But a lot of that is just convention. They could equally well say 4:00 pm UTC and still be very precise and unambiguous.

Also, why do you need the "+". In the 1970s in Australia (just after metrication) we used to see "1 m 33 cm" a lot. I've never seen anyone think that it was multiplication. It was more likely from the habit of doing "4 ft 7 in". Once we learnt that writing it as 1.33 m or 133 cm made conversion between them trivial (just shift the little dot), we dropped the complication of mixed units.  Stepho  talk  05:09, 23 December 2024 (UTC)

• UTC is not a time zone. It's a time standard, and it uses a 24-hour clock.
• In the language of the SI, symbols have special meanings. If you mean addition (as here) you need a "+" sign. In the absence of any other symbol, a space denotes multiplication. Outside the SI you can invent any conventions you want, and Misplaced Pages sometimes chooses to depart from the SI, via MOSNUM. I don't believe MOSNUM permits this particular departure.

Dondervogel 2 (talk) 08:30, 23 December 2024 (UTC)

Remsense, one reason Misplaced Pages can't rely on ISO 8601 throughout is that some articles express dates in the Julian calendar, or even the Roman calendar, and ISO 8601 only allows the Gregorian calendar. ISO 8601 is fine for airline schedules and hotel reservations, but it truly sucks for history. Jc3s5h (talk) 15:13, 22 December 2024 (UTC)

If we can't get Americans to switch to DMY, or Brits to switch to MDY, what hope do we have of getting both groups to switch to YMD? --Redrose64 🌹 (talk) 00:03, 23 December 2024 (UTC)

I think the biggest problem with YMD, besides unfamiliarity, is that you frequently want to suppress the Y part when it's understood, and that's harder to do when it's at the start. --Trovatore (talk) 00:14, 23 December 2024 (UTC)

I think the UN should enforce use of DMY worldwide on Mondays, Wednesdays and Fridays, MDY on Tuesdays and Thursdays, and of course dedicate the weekends to YMD. Remsense ‥ 论 00:20, 23 December 2024 (UTC)

Whaaaaat? Why would we want the least fun format on the weekend?  — SMcCandlish ☏ ¢ 😼  09:02, 23 December 2024 (UTC)

Year-first encourages us to meditate on the long term while many are less occupied at work. Remsense ‥ 论 08:59, 24 December 2024 (UTC)

My responses to these questions would be:

1. There is no strong tie of "18:40" format to the US, or the UK, or whatever. It's a format used in a variety of military, otherwise-governmental (e.g. transport/transit scheduling), and sometimes scientific and a few other contexts, and that's true inside and outside the US. It's a completely abnormal format outside of those kinds of contexts, and people don't use it on an everyday basis (that I know of; maybe there is some English-using country in which it has been so aggressively imposed that it's become an everyday norm there and people don't know what "3 pm" means any more, but I'm not aware of such a place). MOS:NUM grudgingly permits its use, but 24-hour format verges on "user-hateful" and should be avoided in most circumstances (i.e. where it's not an established norm for the subject in question).
   • On JMF's side point about "12:00 pm", MoS could easily have a rule about this, just to settle the confusion, which is common among the general populace, but not among reliable sources on time and writing, in which it virtually always corresponds to "12:00" in 24-hour time, with "12:00 am" being "00:00". MoS saying something about it, though, should be to avoid it in favor of "midnight" and "noon", because confusion among everyday people persists. (My city is gradually changing all of its "No Parking 12 AM – 6 AM, Street Cleaning, Tu, Th" signs to "No Parking 12:01 AM – 6:01 AM, Street Cleaning, Tu, Th" because of this factor).
2. Meaningless, confused question. As Stepho-wrs explained, UTC is an offset, not a format. There's a standardized way of writing the name of a UTC time-zone offset, e.g. as "UTC+05:00", but that's not relevant to how times are used or referred to (in various styles) for typical human consumption. Likewise, the Unicode name of "@" is "U+0040 @ COMMERCIAL AT", but this has no implications for use of the symbol or for plain-English references to it; writing "the at-sign" is not an error. When WP puts "3:05 pm, February 3, 2002 (UTC)" in someone's sig to conform to their date settings in the WP "Preferences" panes, that is also not an error.
   • Stepho-wrs (which surprises me, given the above) wondered why UTC offset names use a +. It's because the offsets run both directions, e.g. "UTC−05:00" is US and Canadian eastern standard time, and rendering the positive ones as "UTC 05:00" or "UTC05:00" would be problematic for humans and automation alike in various ways. The + isn't any more superfluous than the leading 0 on 00–09.
3. A Canada–US squabble over ordering: A) Who cares? We have {{convert}} for a reason. B) This is a pretty good argument (from Stepho-wrs): "If you have multiple countries with a mix of units then you have multiple weak ties and no strong ties. Therefore we default to metric first, as per WP:UNITS." B) If that argument were not persuasive, then MOS:STYLEVAR still already covers this: When there are two competing acceptable styles, do not change from one to the other without an objectively defensible reason. Try to establish consensus on the article's talk page about which should be preferred, if you are convinced a change should happen. Iff such a consensus cannot be reached, then default to whatever was used in the first post-stub version of the article (same as with ENGVAR disputes, and CITEVAR ones). So, we are not missing any rules.
4. It's "1.33 m" (not "1 m 33 cm") primarily because that is how the metric system is internationally standardized and how it is used in the real world, rather consistently. The two-units version is also less concise, and annoyingly repetitive because of how the units are named. And the system is designed to be decimal from the ground up. Thus Steoph-wrs observation: "Once we learnt that writing it as 1.33 m or 133 cm made conversion between them trivial (just shift the little dot), we dropped the complication of mixed units." It's not WP's role to treat occasionally-attestable but very disused variants away from a near universal system as if they had become norms and must at all costs be permitted. (Much of MoS's role is eliminating unhelpful variation that is confusion or which causes cyclic dispute, even if we settle on something arbitrary; but most of MOS:NUM is not arbitrary but standards-based.) As for US customary (or "imperial" units, never mind the British empire doesn't exist any longer and what's left of it metricated a long time ago), you can find decimal uses of it for various purposes in real-world publications (e.g. "0.35 in"), but it tends to be for special purposes, like establishing margin widths when printing on non-metric paper, and in electronic media when calculation or sorting might be needed. But the typical use of such units is in "3 ft 7 in" form because they are unrelated units, and because the two-unit split format is deeply conventionalized, including in various industries like construction. That's not true of "3 m 7 cm".
   • I don't buy Dondervogel_2's "multiplication implied" argument. Virtually no one outside of some particular ivory towers (and even then only in specialist material that was explicit about it) would ever interpret any "# unit1 # unit2" construction, in any context, as a multiplication operation. The real world routinely uses formats like this and never means multiplication by it. E.g. look at the fine print on any laptop's or other device's power-brick; you'll likely see back-to-back, undivided measurement-and-unit-symbol pairs, like "12 W  3.7 A".
5. Skeptic2's add-on ISO-dates question: WP doesn't use 2024-12-23 format (except for special purposes) because it is not a norm, anywhere (as an ENGVAR or other geographical or dialect consideration). It's only standardized within specific industries, systems, processes, organizations, and other specialized usage spheres. (I use it very, very frequently in web development and other coding. But it's not something I'd use in a letter or a novel or an op-ed, because it's a format for computers, and for precision and cross-language exchange among engineers and scientists, not a format for everyday communication.) I've never seen one iota of evidence of broad and increasing acceptance of ISO among the general public for daily use, in regular writing (though ability to parse it has likely increased in the last 30 years because of the Internet and the amount of people's exposure to code that uses it). But it does not match anyone but maybe an ultra-nerd's English-language parsing. If you're American, probably (unless you are older and rural) what you think and say aloud to express today's date is "December 23, 2024" or perhaps "December 23rd, 2024". If you're not American, you probably (some Canadians are an exception too) would express it as some variant of "23 December 2024", "23rd December, 2024", or "the 23rd of December, 2024", depending on your age, social background, country of origin, etc. (American yokels often use the last of those; I have relatives in the Deep South who do it habitually.) These correspond closely (between exactly and too-close-to-matter) to MOS:DATE's two "M D, YYYY and "D M YYYY" formats. An ISO date does not. It's very unnatural. It requires the reader (most readers, anyway) to stop and "translate" it in their heads, thinking about which block of numbers means what, and so on. (I've been using ISO dates on a daily basis since around 1990, and I still have to think about it a little, and once in a while get it wrong, especially shortly after transferring from narrative work to coding work.) Worse, many people do not know at all whether that represents YYYY-MM-DD or YYYY-DD-MM; lots of non-geeky non-Americans mistakenly think it's the latter because they are used to D M YYYY order otherwise, and the idea of the month coming before the day is foreign to them, an annoying Americanism. I run into this problem in a great deal of online content.

 — SMcCandlish ☏ ¢ 😼  09:02, 23 December 2024 (UTC)

Official documents in South Africa are YYYY-MM-DD, I personally use it to name bank statements etc. on my computer because they are easier to find. It depends on what you are used to. Avi8tor (talk) 12:56, 29 December 2024 (UTC)

It isn’t however very readable, on articles of prose. MapReader (talk) 18:20, 29 December 2024 (UTC)

To reiterate a distinction that's not potentially reducible to cultural acclimation, it's clear that purely numerical formats are less natural in prose. Remsense ‥ 论 18:23, 29 December 2024 (UTC)