Apropos? https://www.youtube.com/watch?v=-5wpm-gesOY
On Saturday, March 14, 2015 at 7:28:23 AM UTC-7, Stefan Karpinski wrote: > > There are no leap seconds in universal time. There are leap seconds in UTC > which bridges terrestrial time (SI seconds) with universal time (day = 1 > earth rotation; second = 1/86400 of an earth rotation) by using SI seconds > as the basic unit but introducing leap seconds here and there to ensure > that UTC days stay in sync with terrestrial days (but not terrestrial > seconds). This is why Date x Time ≅ DateTime for UT. > >
