F-ckin Leap Seconds, how do they work?
sla at ucolick.org
Thu Jul 5 17:42:49 UTC 2012
On Thu 2012-07-05T10:26:22 -0700, Roy hath writ:
> Lets see. There have been nine leap seconds in 20 years. So at the
> start of the next century the difference will probably be less than a minute
There is no predicting how large the decadal variations in LOD will be,
but the difference should be somewhere between 1 minute and 3 minutes.
Please see these charts and tables for how unpredictable it is.
> Remember OpenTime is only for people who want their system clocks to
> ignore leap seconds. I don't include myself among the possible users of
Anyone who needs that can already do that using existing, deployed,
and tested code and hardware and the GPS system time scale. Please
see this worked example. Please do not invent yet another private
Steve Allen <sla at ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory--ISB 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
More information about the NANOG