GNU bug report logs - #23008
Daylight Savings Time Bug in Date

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From: Sarah Corriher <sarah.c <at> healthwyze.org>
To: 23008 <at> debbugs.gnu.org
Subject: bug#23008: Daylight Savings Time Bug in Date
Date: Mon, 14 Mar 2016 01:24:40 -0400

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We detected a bug in the date program, which correlates to the daylight 
savings time change. A day disappeared from the date program between 
12:00 AM and 1:00 AM on 3/14/16. The date program began working as 
expected immediately after 1:00 AM. Here is the bizarre output that I 
got for basic commands on 3/14/16:

   $ date -d -0days +%Y-%m-%d
   2016-03-14

   $ date -d -1days +%Y-%m-%d
   2016-03-12

Notice that I was unable to obtain the expected output of 2016-03-13 for 
the day prior. I was able to reproduce this using version 8.13 on 
Debian, and 8.21 on Mint.

-- 
Sarah C. Corriher
Co-author of "Defy Your Doctor and Be Healed"
336-528-4120
http://HealthWyze.org

We're Health Wyze. Have you told your friends about us?

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