> - in samoa, there was never a december 30th 2011. That was interesting, so I had to read about it. Apparently they skipped a day to be closer to Asian time z

> - in samoa, there was never a december 30th 2011. That was interesting, so I had to read about it. Apparently they skipped a day to be closer to Asian time zones. They did the same thing in the opposite direction in 1892 by having two 4th of Julys to be closer to American timezones. Now they kinda just walked back on that. Interestingly I think the Python datetime approach can handle both of these with no problem. The rest of your list sounds... a lot tougher.