[COFF] Manipulating time_t values (was: Unix half-billion years old 1985)
Bakul Shah
bakul at bitblocks.com
Tue Nov 5 09:50:18 AEST 2019
On Tue, 05 Nov 2019 10:00:55 +1100 Greg 'groggy' Lehey <grog at lemis.com> wrote:
>
> [Moved to COFF]
>
> On Monday, 4 November 2019 at 16:59:22 -0500, John P. Linderman wrote:
> > I wrote a near-trivial "timestamp" command to make it easier to do time
> > arithmetic
> >
> > TZ=udt timestamp
> > 119 11 04 21 50 06 18204 1572904206 Mon Nov 4 21:50:06 2019
> > TZ=udt timestamp 0
> > 70 01 01 00 00 00 0 0 Thu Jan 1 00:00:00 1970
> > ...
>
> FreeBSD has this functionality in date(1):
>
> TZ=UTC date -r 500000000
> Tue 5 Nov 1985 00:53:20 UTC
> TZ=UTC date -r 1500000000
> Fri 14 Jul 2017 02:40:00 UTC
Shouldn't that be
Tue 5 Nov 1985 00:52:57 UTC
Fri 14 Jul 2017 02:39:23 UTC
given that this is UTC (which is 37 seconds behind TAI)?
Sorry :-)
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