Timezones are more than UTC offsets. If only it were that simple. The model might work in the US with about 4 timezones, where summertime changes on the same da

Timezones are more than UTC offsets. If only it were that simple. The model might work in the US with about 4 timezones, where summertime changes on the same dates. But some places don't observe summertime, some change on different dates than others, where I am it's not even summer right now, it's winter, and so on. You can have the same UTC offset as someone else on a certain date, but still be in a different timezone. Something every programmer doing something involving time zones should think about IMO. I wrote about it here: http://creativedeletion.com/2008/04/10/world-time-is-more-than-gmt-offsets/ http://creativedeletion.com/2008/04/10/world-time-is-more-th...