APE date: Difference between revisions

Revision as of 01:16, 9 January 2006

This is how dates and times are to be represented in the APEv2 tagging system:

Date and Time Format

Date and Time Formats are used to address time points not related with the playback. Usually longer time periods (1 . . . 500 years) with less accuracy (1 day . . . 1 year) are addressed.

It uses ISO 8601 as time format to overcome ambiguous national formats.
Format is "big endian" text format like the normal arabic numbers. Left digits have a higher weight than right digits.
So the meaning is YYYY-MM-DD hh:mm:ss, where YYYY is the year, MM the month, DD the day, hh the hour since midnight, mm the minutes and ss the seconds.
Year is four digits, other items are two digits long.
Year, month and day are hyphen separated, hour, minute and second with a colon.
You can remove right side number for reduced precision representation.
To address a special week, the format is YYYY-Www, where YYYY is the year and ww is the week. Week #1 is the first week with it's wednesday in the new year. Weeks #1 until #53 are possible.

Examples:

1999
1999-08
1999-08-11
1999-W34
1999-08-11 12:34
1999-08-11 12:34:56

Weblinks:

Markus G. Kuhn's Time Page

@@ Line 5: / Line 5: @@
 Date and Time Formats are used to address time points not related with the playback. Usually longer time periods (1 . . . 500 years) with less accuracy (1 day . . . 1 year) are addressed.
-*It is [http://www.cl.cam.ac.uk/~mgk25/iso-time.html ISO 8601] used as time format to overcome national ambiguously formats.
+*It uses [http://www.cl.cam.ac.uk/~mgk25/iso-time.html ISO 8601] as time format to overcome ambiguous national formats.
 *Format is "big endian" text format like the normal arabic numbers. Left digits have a higher weight than right digits.
 *So the meaning is YYYY-MM-DD hh:mm:ss, where YYYY is the year, MM the month, DD the day, hh the hour since midnight, mm the minutes and ss the seconds.