On Mon 2017-01-30T14:14:10 +0000, Tony Finch hath writ: > I think what I was trying to get at (as others have already said in this > thread) is that you can use the TAI-UTC delta to translate from UTC to TAI > during a leap second, but you need more information to make the inverse > translation.
As mentioned by Arias in that radio show, there are leaps of one hour in time that we deal with regularly. The tz project has tzdata that unambiguously represent when the jump occurs, and the tzcode has a convention for how to interpret the ambiguous hour. (One thing tz cannot do is represent the legal specification of the changes in Spain a century ago when the time of fall back was given by the decree as 25:00:00 on the date in question. tz encodes those as 01:00:00 on the next date.) -- Steve Allen <s...@ucolick.org> WGS-84 (GPS) UCO/Lick Observatory--ISB 260 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 _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com https://pairlist6.pair.net/mailman/listinfo/leapsecs
