Date: Thu, 21 Nov 2013 22:54:02 +0000 From: Laurent Bercot <ska-dietlibc@...rnet.org> To: musl@...ts.openwall.com Subject: Re: Pending patches/issues before 0.9.15 release? > A glitch which would never have happened without the abominations > which are leap seconds. Really, the core cause was the NTP folks' > agenda in forcing leap seconds onto a POSIX time model where they > don't work, resulting in discontinuous, non-monotonic clock jumps and > time ambiguity. Looks like we totally agree on this :) > If they'd instead smoothed out the difference between > POSIX seconds and SI seconds over the whole interval between leap > seconds as a tiny clock drift, reliable conversion back to TAI seconds > could be performed as a presentation step without breaking software > doing (valid, per POSIX) interval timing with time_t and > timeval/timespec. ... but not on the conclusion. My own conclusion is that a linear time scale should have been adopted for system clocks, and conversions from/to UTC should be an entirely userland, only-for-display thing. System operations should be able to depend on linear time, and only humans should care about human-oriented time such as UTC. This is why I always set up my system clock as TAI-10. -- Laurent
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