[LEAPSECS] Longer horizon

[Hal Murray]

> (1) Push for a longer time horizon for leap second announcements.  For

> compute guys, the more lead time the better.  6 months is just too short to

> meet deployment realities.  5 years would cover most bases, with 10 years

> covering all but a vanishingly small number.  Even 2-3 years would help for

> two reasons. (1) it would mean only one upgrade during a 5 year deployment

> rather than possibly 10. (2) It would allow management to plan and budget

> for extra resources needed to ensure leapseconds will work this time. 


I don't understand this area.

How often do systems need to get updated to track time zone changes?  Maybe 
tracking leap second announcements every 6 months would help scheduling 
updates.

Has the US Congress stopped playing with DST rules?  When was the last change 
in Indiana?

How often do things change in the EU or the rest of the world?

Or are we talking about systems that don't use time zones?  If so, what sorts 
of things do they do?  How big is the problem space at the intersection of 
time matters but updating a table is hard?



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