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

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