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Difference between revisions of "Help:Manual of Style (dates and times)"

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m (Happy5214 moved page Talk:Riesel prime 2 25039 to Help:Using old PrimePages data without leaving a redirect: More useful as a help page (Karsten can figure out the title later))
(PrimePages fixed their dates, so this section is now irrelevant.)
 
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For the place-holder dates prior to about 1995 for prime submissions at top-5000, Karsten and I have been handling them as follows:
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==Overview==
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This page serves as a style guide for dates and times on the Prime-Wiki.
  
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1. If the date is Jan. 1st, we show the prior year with no month or day, i.e. 1989 in this case.<br>
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==In general==
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2. If the date is the 1st of some other month, we show the year and month of the previous month, i.e. 3/1/1993 would be shown as 1993-02 with no day shown.<br>
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===Dates===
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* All dates shall be in year-month-day order and be all-numeric (<code>YYYY[-MM-DD]</code>), as in [[wikipedia:ISO 8601|ISO 8601]].
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* CE/BCE shall be used in preference to AD/BC for years in the classical period.
  
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All (most) of the old dates were entered in CST (U.S. Central time zone) as the last day, minute, and second of the month or year in which they were discovered, i.e. time of 23:59:59. When PrimeGrid took it over, all of the times were converted to UTC effectively adding 5 or 6 hours to them.  The dates are now the 1st of the month following the find and the times are all 4:59:59 or 5:59:59 depending on CST daylight saving time at the time of submission. It would be UTC-6 in winter and UTC-5 in summer.
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===Times===
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* All times shall be based on a 24-hour clock (<code>HH:MM[:SS]</code>).
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* There is no consensus yet as to a standard time zone for this Wiki.
  
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Showing at least the year would provide more info than ? but would be more accurate than 1990-01-01.
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[[Category:Help]]
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[[User:Gd barnes|Gary Barnes]] ([[User talk:Gd barnes|talk]]) 12:57, 24 June 2024 (UTC)
 

Latest revision as of 17:36, 12 November 2024

Overview

This page serves as a style guide for dates and times on the Prime-Wiki.

In general

Dates

  • All dates shall be in year-month-day order and be all-numeric (YYYY[-MM-DD]), as in ISO 8601.
  • CE/BCE shall be used in preference to AD/BC for years in the classical period.

Times

  • All times shall be based on a 24-hour clock (HH:MM[:SS]).
  • There is no consensus yet as to a standard time zone for this Wiki.
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