Re^4: Question regarding Time::Piece and timezones

On Linux at least, gmtime() actually returns UTC. As explained in hippo’s link, GMT in common use is often used as a synonym for UTC, but GMT has other meanings differing by a few seconds or 12 hours!.

Comment on Re^4: Question regarding Time::Piece and timezones

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Re^5: Question regarding Time::Piece and timezones by jszinger (Scribe) on Jan 26, 2021 at 17:14 UTC
From https://www.apparent-wind.com/gmt-explained.html Prior to 1925, astronomers reckoned mean solar time from noon so that when the mean sun was on the meridian, it was actually 00:00 GMT. This practice arose so that astronomers wouldn't have a change in date during a night's observing. Some in the astronomical community still use the pre-1925 definition of GMT in the analysis of old data although it is recommended that the term Greenwich Mean Astronomical Time now be used to refer to time reckoned from noon.	[reply]
Re^6: Question regarding Time::Piece and timezones by Marshall (Canon) on Jan 30, 2021 at 02:20 UTC
jszinger, thanks for the info! In my work, I only process computer generated logging files and by definition of the "problem set", I never see any date/time before the "computer era". But I enjoyed this info! Thanks!	[reply]


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