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The format dd.mm.yyyy using dots (which denote ordinal numbering) is the traditional German date format, [65] and continues to be the most commonly used. In 1996, the international format yyyy-mm-dd was made the official date format in standardized contexts such as government, education, engineering and sciences.
In communications messages, a date-time group (DTG) is a set of characters, usually in a prescribed format, used to express the year, the month, the day of the month, the hour of the day, the minute of the hour, and the time zone, if different from Coordinated Universal Time (UTC).
Standard format: 1- or 2-digit day, the spelled-out month, and 4-digit year (e.g. 4 February 2023) Civilian format: spelled out month, 1-or 2-digit day, a comma, and the 4-digit year (e.g. February 4, 2023). [12] Date Time Group format, used most often in operation orders. This format uses DDHHMMZMONYY, with DD being the two-digit day, HHMM ...
The effective time of announcement by the U.S. Secretary of Defense to the Military Departments of a decision to mobilize Reserve units. (US) G-Day The unnamed day on which an order, normally national, is given to deploy a unit. (NATO) H-Hour
Alternatively, a format for duration based on combined date and time representations may be used by agreement between the communicating parties either in the basic format PYYYYMMDDThhmmss or in the extended format P[YYYY]-[MM]-[DD]T[hh]:[mm]:[ss]. For example, the first duration shown above would be "P0003-06-04T12:30:05".
spork_cite_to_yyyymmdd: changes 'date = Month DD, YYYY' or 'date = DD Month YYYY' to 'date = YYYY-MM-DD' MOSNUM dates.js – a comprehensive tool maintained by User:Ohconfucius based on scripts written by User:Lightmouse which can help make all date formats (dmy and mdy) consistent, whilst removing common errors and ambiguous date formats; it ...
The YYYY-MM-DD layout is the only common format that can provide this. [15] Sorting other date representations involves some parsing of the date strings. This also works when a time in 24-hour format is included after the date, as long as all times are understood to be in the same time zone.
See: ISO date. "±YYYY-MM-DD", with 1 to 4 digits for year "YYYY" from -9999 to 9999. Year by itself is fine. As is the year followed by just the month. Some stuff after the date is allowed. Such as references after the date.