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From: Ulrich Mueller <ulm@gentoo.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Represent NTP's origin time
Date: Thu, 15 Apr 2021 10:27:27 +0200
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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>>>>> On Thu, 15 Apr 2021, Stefan Monnier wrote:

> NTP represents time stamps by counting seconds from January 1 1900, but
> my Emacs doesn't seem to be able to represent this:

>     (encode-time (parse-time-string "1902-01-01T00:00-00:00"))
>     => (-32745 59520)
>     (encode-time (parse-time-string "1900-01-01T00:00-00:00"))
>     => (error "Specified time is not representable")

> Do we have some "standard" workaround?

Overflow in the underlying mktime(3) or mktime_z(3)? Are there still
systems around where time_t has only 32 bits?