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From: Tim Landscheidt <tim@tim-landscheidt.de>
To: Bruno Barbier <brubar.cs@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Counterpart to time-to-days?
Date: Thu, 30 May 2019 13:52:15 +0000	[thread overview]
Message-ID: <87woi8yrqo.fsf@passepartout.tim-landscheidt.de> (raw)
In-Reply-To: <5ceee589.1c69fb81.2145e.33c3@mx.google.com> (Bruno Barbier's message of "Wed, 29 May 2019 23:03:04 +0200")

Bruno Barbier <brubar.cs@gmail.com> wrote:

>> | ELISP> (format-time-string "%F" (current-time))
>> | "2019-05-29"
>> | ELISP> (format-time-string "%F" (days-to-time (time-to-days (current-time))))
>> | "3988-05-29"
>> | ELISP>

>> So time-to-days seems to count the days from 0001-12-31bce,
>> while days-to-time (without being explicit about it) seems
>> to treat days as counting from epoch (1970-01-01).

>> What is the intended counterpart to time-to-days?

> Are you looking for `time-to-number-of-days` ?

>    (format-time-string "%F" (days-to-time (time-to-number-of-days (current-time))))
>    => 2019-05-29

Thanks, that works.  (Now on for some time zone mangling …)

Tim



      reply	other threads:[~2019-05-30 13:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29 12:20 Counterpart to time-to-days? Tim Landscheidt
2019-05-29 21:03 ` Bruno Barbier
2019-05-30 13:52   ` Tim Landscheidt [this message]

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