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there is a place for solar mean time on List of tz database time zones table
There is a site called (http://www.timeanddate.com/) where you can get solar mean time for the tz database table. I thought it will be a great addition to the table so people can see or calculate time difference before standard time existed.
Example of how the table looks like after the figures are inserted.
|CC||Coordinates||TZ||Comments||UTC offset||UTC offset DST||Solar mean time||Notes|
|US||+611305−1495401||America/Anchorage||Alaska (most areas)||−09:00||−08:00||-09:59:36h|
|US||+581807−1342511||America/Juneau||Alaska - Juneau area||−09:00||−08:00||-08:57:41h|
|US||+571035−1351807||America/Sitka||Alaska - Sitka area||−09:00||−08:00||-09:01:13h|
|US||+593249−1394338||America/Yakutat||Alaska - Yakutat||−09:00||−08:00||-09:18:55h|
|US||+550737−1313435||America/Metlakatla||Alaska - Annette Island||−09:00||−08:00||-08:46:18h|
Use of "timezone" instead of "representative location"
The IANA Timezone Database (https://www.iana.org/time-zones) uses the term "representative location" for identifiers like "America/Boise". However, the identifiers are referred to as "timezones" in various Wikipedia articles.
This creates confusion, as a representative location is not a timezone. The IANA identifiers represent historic changes to timezone offsets and daylight saving rules for a particular location or administrative area. Other places that have the same history and rules can use the representative location to describe their own offset history without the TZ Database having to list every locality and administrative area world wide.
It's also common to have multiple representative locations that have different daylight saving history, and even standard offset history, within a single timezone. E.g. Australia/Brisbane, Australia/Sydney/, Australia/Melbourne and Australia/Hobart all are in the same timezone but all have different daylight saving history.
The difference between timezone and IANA representative location should be clarified in all Wikipedia articles. In particular the primary article titled "List of tz database time zones" should be "List of tz database representative locations". The difference can then be described as:
"A timezone is a region where the same standard offset from UTC is observed, approximately aligned with lines of longitude with variations for administrative convenience and practicality. A representative location contains the historic offset and daylight saving rule changes for a particular location or administrative area within a timezone. It can be used to describe the offset and daylight saving history of any other location with the same history."
- I agree. Ironically, I arrived here through a search for the common misspelling "timezone" (should be "time zone"). I've mostly focused on cleaning up the simple "timezone"->"time zone" cases so far. During my investigations, I have come across several cases where the representative location is misused as a time zone name and will likely go through and try to clean those up next. But, as you're aware, it can be tricky...often article text that mixes up locations and time zone names is also a little unclear about the author's actual intent.
- If you're interested, I'd be happy to collaborate with you on untangling specific cases of this mistake. 3Todd (talk) 13:47, 28 April 2020 (UTC)
My question at Lunar Calendar
I posted a question on the talk page for Lunar Calendar. It's about something I'd like to do in the article, but I don't want to do the work if it will ultimately be decided that it is unnecessary or not appropriate (original research?). But I wonder if people aren't watching that page. So, since that article is listed as being very important to this WikiProject, let me call attention here to my question there. I'd really like to know if anybody has anything to say. Uporządnicki (talk) 21:56, 28 May 2020 (UTC)
- Talk:Lunar_calendar#That_"popular_culture"_point. Editors may need more context for that discussion to proceed. ~Kvng (talk) 15:07, 2 June 2020 (UTC)
- Oops! I realize now, I posted my question, AND THEN I posted a comment. Actually, what I was looking to bring to people's attention here was the other Talk:Lunar_calendar#Table at "Length of the lunar month" revisited. I'd like to do some serious editing/expansion on a table in that article. But I want first to see if it might be deemed Original Research. Yeah, I should have provided more "context"--like the obvious link, for example. Uporządnicki (talk) 15:42, 2 June 2020 (UTC)
Daylight hours by latitude
@Appple: I just declined Draft:Daylight hours by latitude for a WP:PROD because it is the wrong process, but I am not convinced that it should be deleted at all. The last AFC reviewer declined it as unsuitable citing WP:RAWDATA, but previous reviewers only thought it needed improving (better sourcing etc). We have lots of lists of "raw" data, List of tz database time zones for instance, and this one has the benefit that it will not need regular updates to maintain it. Anyone care to adopt this? I'm also not convinced that a previous reviewer was right to tell the editor to remove all the pictures. SpinningSpark 08:58, 29 May 2020 (UTC)
- The topic is already covered at Twilight#Duration and Daytime#Daytime_variations_with_latitude_and_seasons. Maybe a stand-alone article is desired, but this draft doesn't look a good starting point. ~Kvng (talk) 15:17, 2 June 2020 (UTC)
Redirect ISO 4031
I don't really see enough to support a standalone article for ISO 4031 but do see many incoming links. Would redirecting to ISO 8601 or the list of ISO surprise readers? Rotideypoc41352 (talk · contribs) 18:19, 16 July 2020 (UTC)
- Redirect to ISO 8601 would work. It would work even better if ISO 8601 was improved to mention ISO 4031 in the lead. ~Kvng (talk) 16:24, 24 July 2020 (UTC)
Daylight saving time at FAR
I have nominated Daylight saving time for a featured article review here. Please join the discussion on whether this article meets featured article criteria. Articles are typically reviewed for two weeks. If substantial concerns are not addressed during the review period, the article will be moved to the Featured Article Removal Candidates list for a further period, where editors may declare "Keep" or "Delist" the article's featured status. The instructions for the review process are here. (t · c) buidhe 01:18, 2 December 2020 (UTC)
Maps incorrectly show annexed territories
Maps show annexed territories not in the way they are recognized internationally. For example, article Time_in_Ukraine simply shows Crimea as part of Russia without any disclosure. That is misleading. The title also says "legal time" which is not correct. Any picture that shows annexed territories should at least mark the annexed territories in a way that indicates both internationally recognized borders and how it is de facto controlled to avoid giving any disinformation to the readers. — Preceding unsigned comment added by Random74 (talk • contribs) 12:51, 16 December 2020 (UTC)
Calendar (New Style) Act 1750 : please review quality and importance rating
A great deal of work has gone into expanding, cleaning up and citing Calendar (New Style) Act 1750, so may I suggest that its classifications according to this wikiproject merit review. It is clearly no longer start class. Of course I don't expect this WP to pre-empt the GA process (unless of course someone would be kind enough to get two for the price of one and do the GA review: if not, then any suggestions or corrections that can be actioned while it is in the GAN queue would be most welcome). --John Maynard Friedman (talk) 15:50, 19 December 2020 (UTC)
UTC map need feedback
I'm a graphic worker and is working on a svg version of UTC time map, it's supposed to be updated, easier to edit, not so heavy etc as from a request here. Unfortunately I have lost contact with Odder who was supposed to help me with feedback.
So now I'm asking here if someone with the appropriate knowledge could help me out with feedback. There are different versions out there from different times and it's hard for me without any knowledge to know what is correct, I know graphic's not the subject itself. There is a draft here, a png version of the svg, which I need feedback on as asked for in the request which you would need to read. I do hope someone here can help me, thanks. --Goran tek-en (talk) 14:25, 29 December 2020 (UTC)