There are other ambiguities - try Ireland, Israel, and India for IST [1] Turns out those abbreviations aren't part of an official standard anyway, afaict, so be

There are other ambiguities - try Ireland, Israel, and India for IST [1] Turns out those abbreviations aren't part of an official standard anyway, afaict, so best to avoid altogether. [1] http://en.wikipedia.org/wiki/List_of_time_zone_abbreviations http://en.wikipedia.org/wiki/List_of_time_zone_abbreviations