[ntpwg] Further to the timestamping issue
Rob Seaman
seaman at noao.edu
Thu Jun 19 16:44:39 UTC 2008
M. Warner Losh wrote:
> That only matters if you think that having civil time that's closely
> tied to the mean solar time is important.
I'll keep this short since LEAPSECS provides the proper place for such
discussions. There are any number of related threads over the years:
http://six.pairlist.net/pipermail/leapsecs
> After all, there's very few people that live at the meridian where
> the localtime is defined.
> Today, my clock is just about an hour off from mean solar time due
> to daylight savings time.
This confuses periodic and secular issues. A static or seasonal
offset is one thing. A quadratically accelerating drift is another.
The world is riddled with dependencies on the length of the solar day.
> I know Rod loves leap seconds.
Rather I care about mean solar time. Leap seconds are just a means to
an end.
> UTC can do leap seconds more often than twice a year.
NTP already handles this case, but it is a different issue than I was
discussing.
Rob
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