2006 Sep 25
Daily Archive

Greenwich Mean Time (GMT) Formats

There are currently three formats for expressing date/time in Greenwich Mean Time (GMT). All examples represent the date, "July 04, 2050". The time for all three formats is expressed as "hour:minutes:seconds". Here is the preferred, standard format1 for the Internet. This format is defined by RFC 1123 (updated from RFC 822): # RFC 1123 Standard GMT Format Mon, 04 Jul 2050 07:07:07 GMT The programming language C uses the ANSI standard format1 in its asctime(): # ANSI Standard GMT Format Mon Jul 4 07:07:07 2050 The RFC 850 format2 is now obsolete (RFC 1036) and should not be used: # […] Read more »

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