Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3).
Navigation
Topics Help • Register • News • History • How to • Sequences statistics • Template prototypes

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

From Prime-Wiki
Jump to: navigation, search
m (Happy5214 moved page Help:Using old PrimePages data to Help:Manual of Style (dates and times) without leaving a redirect: Renaming in preparation of expansion as general guide on dates/times)
(PrimePages fixed their dates, so this section is now irrelevant.)
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
−
This page describes how to handle old (before ca. 1996) [[The Prime Pages|PrimePages]] data when importing it into this Wiki.
+
==Overview==
 +
This page serves as a style guide for dates and times on the Prime-Wiki.
  
−
==Importing dates==
+
==In general==
−
Several dates in the PrimePages prior to about 1996 are placeholders, where only part of the date (and none of the time) is actually known. A date can usually be identified as a placeholder if the time is "4:59:59" or "5:59:59". Most placeholders, but not all, are on the first day of the month. All/most of the old dates/times were entered in CST/CDT ([[wikipedia:Central Time Zone|U.S. Central Time Zone]]) as the last day, minute, and second of the month/year in which they were discovered, i.e. local time of 23:59:59. When PrimeGrid took over management of the site, all of the times were converted to UTC. This had the effect of adding 5 (if that date fell within daylight saving time under the rules of that time) or 6 hours (otherwise) to them, resulting in all these placeholder dates now being shown on the 1st of the following month.
+
===Dates===
 +
* 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]].
 +
* CE/BCE shall be used in preference to AD/BC for years in the classical period.
  
−
When importing placeholder date data into the Wiki for prime submissions at the PrimePages, we follow this procedure:
+
===Times===
−
 
+
* All times shall be based on a 24-hour clock (<code>HH:MM[:SS]</code>).
−
* If the date is Jan. 1st, use only the prior year with no month or day, e.g. "1/1/1990" is shown here as "1989".
+
* There is no consensus yet as to a standard time zone for this Wiki.
−
* If the date is the 1st of some other month, use the year and month of the previous month, e.g. "3/1/1993" is shown here as "1993-02", with no day shown.
 
−
* Otherwise, use the full date of the previous day, e.g. "9/3/1994 04:59:59" is shown here as "1994-09-02".
 
  
 
[[Category:Help]]
 
[[Category:Help]]

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.
Retrieved from "https://www.rieselprime.de/z/index.php?title=Help:Manual_of_Style_(dates_and_times)&oldid=36523"