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Posts: 46 | Thanked: 99 times | Joined on May 2009 @ Sydney, Australia
#140
Originally Posted by trollo View Post
I don't know what goes wrong with Dallas, but it worked flawlessly for Sydney. However having duplicated the problem it shouldn't take too much time to figure that out.
Dallas uses central time, which in the time zone information files for the US is based on Chicago. In 1936, Chicago switched from CST to EST on 1 March 1936. So the time zone information file shows 2 time zone offsets for "standard time" - being 6 hours (CST) and 5 hours (EST).

In some circumstances the wrong one is chosen.
 

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