[tz] Question about leap seconds
sla at ucolick.org
Wed Sep 11 16:18:43 UTC 2013
On Wed 2013-09-11T16:55:49 +0100, Zefram hath writ:
> Generalising a bit: it is sensible to represent a timezone's behaviour
> in a way that's independent of the local interpretation of time_t.
> Decoding time_t to a UTC time should be a separate step from converting
> a UTC time to local time.
Adding to that, the term UTC is polysemic in the context of computer
timekeeping. I urge anyone using the term UTC to be explicit about
whether the intended meaning is UTC[ITU-R] (has leap seconds) or
UTC[POSIX] (no leap seconds). This may help avoid misunderstandings.
Steve Allen <sla at ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory--ISB Natural Sciences II, Room 165 Lat +36.99855
1156 High Street Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m
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