Date: Thu, 19 Nov 2020 19:50:52 -0500 From: David Magda <dmagda+stable@ee.ryerson.ca> To: freebsd-stable <freebsd-stable@freebsd.org> Subject: NTP, UTC, and (negative) leap seconds Message-ID: <64E52A56-4C8F-4B9E-A4D3-33117C270D43@ee.ryerson.ca>
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Hello, So there was a recent weblog post on a timekeeping observation: https://fanf.dreamwidth.org/133823.html https://news.ycombinator.com/item?id=3D25145870 (via) https://en.wikipedia.org/wiki/Leap_second In all circumstances in the past, leap seconds were added: 23:59:57Z 23:59:58 23:59:59 23:59:60 00:00:00 00:00:01 The post brings up the possibility of a =E2=80=9Cnegative=E2=80=9D leap = second, i.e., a skip: 23:59:57Z 23:59:58 00:00:00 00:00:01 Has anyone tested this scenario on FreeBSD? Thanks for any info. -- David Magda=
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