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bug#11101: Incorrect relative dates the day after DST switchover
From: |
Eric Blake |
Subject: |
bug#11101: Incorrect relative dates the day after DST switchover |
Date: |
Tue, 27 Mar 2012 10:41:11 -0600 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20120316 Thunderbird/11.0 |
forcemerge 11098 11101
thanks
On 03/27/2012 10:04 AM, address@hidden wrote:
> Shortly after the DST jump in the United States on March 11th, the 'date'
> command returned an incorrect relevant date for the first hour after
> midnight. See text capture below.
Thanks for the report. However, you're the second person this week, and
adding to a long line of duplicate reporters in prior years, to notice
that 'date' is behaving as we have documented it.
https://lists.gnu.org/archive/html/bug-coreutils/2012-03/msg00102.html
'yesterday' means 'subtract 24 hours', but if you start at midnight
after a 23-hour day, subtracting 24 hours really does cross 2 calendar
dates. If you want to avoid this issue, base your relative calculations
off of noon, not midnight, as suggested in our FAQ:
https://www.gnu.org/software/coreutils/faq/#The-date-command-is-not-working-right_002e
> date (GNU coreutils) 5.97
That's rather old; we just released 8.16.
--
Eric Blake address@hidden +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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