What timezone is the setting for your system? Is it possible that the timesetting is for universal time. Is the bios clock same as the time shown on the screen?

Regards

Leslie

Mr. Leslie Satenstein

SENT FROM MY OPEN SOURCE LINUX SYSTEM.

From: hanes <h.feiner@gmx.at>
To: 17253@debbugs.gnu.org
Sent: Saturday, April 12, 2014 11:44 AM
Subject: bug#17253: date "--date=-x\ days"

Hello,

Tonight (12. of April) in the hour after Midnight I encountered a
missing day when I used the '--date=-13\ days' option.
I can reproduce the bug best, when going backwards in hours;
as far as I can see, there is a hour missing on 30. of March between 01
and 03 O'Clock.

My output is:
date +%Y.%m.%d__%H_%M
2014.04.12__17_28

date +%Y.%m.%d__%H_%M --date=-326\ hours
2014.03.30__03_28

date +%Y.%m.%d__%H_%M --date=-327\ hours
2014.03.30__01_28

I am working on a Ubuntu Linux 64bit Mashine.

with Kind Regards,

hanes