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Re: Oddity or bug in GNU date installation?
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From: |
Andreas Schwab |
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Subject: |
Re: Oddity or bug in GNU date installation? |
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Date: |
Wed, 05 May 2010 16:43:25 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) |
Georg Bauhaus <address@hidden> writes:
> $ date '--date=2010-03-30 - 3 day' +%Y%m%d
> 20100326
> $ date '--date=2010-03-31 - 3 day' +%Y%m%d
> 20100327
> $ date '--date=2010-04-01 - 3 day' +%Y%m%d
> 20100329
You are crossing the DST boundary, where a day can be less than 24
hours, but date calculations always assume 1 day == 86400 seconds. Use
noon instead of midnight as the reference point.
Andreas.
--
Andreas Schwab, address@hidden
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."