June 24, 2014
9:30 p.m.
On 06/24/2014 02:10 PM, Paul_Koning@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.