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National standard format is yyyy-mm-dd. [161] dd.mm.yyyy format is used in some places where it is required by EU regulations, for example for best-before dates on food [162] and on driver's licenses. d/m format is used casually, when the year is obvious from the context, and for date ranges, e.g. 28-31/8 for 28–31 August.
The calendar that is used for Date format. The order in which the year, month, and day are represented. (Year-month-day, day-month-year, and month-day-year are the common combinations.) How weeks are identified (see seven-day week) Whether written months are identified by name, by number (1–12), or by Roman numeral (I-XII).
The last format, being most like ISO 8601, was sometimes referred to as being ISO format. However, ISO 8601 format implies use of the Gregorian calendar, and Wikipedia normally uses the Julian calendar for historic dates before the adoption of the Gregorian calendar—all dates before 1582, many before 1752, and some as late as the twentieth ...
ISO 8601 is an international standard covering the worldwide exchange and communication of date and time-related data.It is maintained by the International Organization for Standardization (ISO) and was first published in 1988, with updates in 1991, 2000, 2004, and 2019, and an amendment in 2022. [1]
Reverted to version as of 23:16, 9 April 2019 (UTC) 05:44, 5 June 2021: 940 × 477 (1.61 MB) Folohsor: Changed Canada to grey and Western Sahara to cyan (both Morocco & SADR use DMY) 23:16, 9 April 2019: 940 × 477 (1.6 MB) AlanM1: Sync'd with w:Date format by country#Listing table as of 2019-04-09T23:12 UTC: 22:52, 7 March 2019: 940 × 477 (1. ...
If an article contains Julian calendar dates after 4 October 1582 (as in the October Revolution), or if a start-of-year date other than 1 January was in force in the place being discussed, or both, a footnote should be provided on the first usage, explaining the calendar usage adopted for the article. The calendar usage should be compatible ...
A leading zero is optional in practice, but is mostly not used. Chinese characters that mean year, month, and day are often used as separators (e.g. 2006年1月29日). Since the characters clearly label the date, the year may be abbreviated to two digits when this format is used.
Day–month–year (DMY) format—e.g., 12 January 2025 or 12 Jan 2025; Month–day–year (MDY) format—e.g., January 12, 2025 or Jan 12, 2025 ; Year–month–day (YMD) format—e.g., 2025-01-12 (also called the "all-numeric" format; used only where space is limited, such as in references and some tables and infoboxes, but not in article ...