On 2016-04-08, at 10:39, John P. Hartmann wrote: > For the sake of argument, suppose you set the wake up time for the bear > to whatever it should be at the current time, say 9:00 on March 9 next > year and congress then subsequently decides in view of various > emergencies to extend summer time through winter (was it 1984?). > I believe our recourse comes on 2016-11-08.
Heck; IERS or BIPM (or whoever?) guarantees 4 months advance notice of a *leap*second*, but we can't expect something similar from Congress. And I don't know how promptly IANA TZDATA updates; I could check the archives for mention of Pacific/Apia or Asia/Pyongyang. A monthly timer pop and readjust? It's disconcerting to come to work two Monday mornings each year and find timestamps on my spool files in error by an hour. Reporting UTC would be more honest. (I think it was ca. 1973. Also perhaps during WWII.) https://en.wikipedia.org/wiki/Daylight_saving_time#History -- gil
