[tz] 'date -u' should say "UTC", not "GMT"
eggert at cs.ucla.edu
Tue Jun 24 21:30:12 UTC 2014
On 06/24/2014 02:10 PM, Paul_Koning at Dell.com wrote:
> UTC, yes. UT?
UT a.k.a. Universal Time" is deliberately ambiguous: it refers to all
the UTx variants together. Technically, GMT can refer to either a civil
day (day starts at midnight) or an astronomical day (day starts at
noon), and UT avoids this twelve-hour ambiguity by standardizing on the
civil day. Until 1952 the US Naval Observatory attempted to resolve the
ambiguity by using the term "Greenwich Civil Time" (GCT) for civil-day
GMT but that terminology did not catch on widely (it wasn't used in
Britain), whereas UT has.
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