Comment 3 for bug 1577414

I see two issues with using time zone abbreviations like this.

First, I think many more people know the name of a city in their time zone, than know the name of their time zone. For example, I lived in London for several years before learning that daylight savings time is called BST.

Second, there are many time zones that have the same abbreviation. For example, there are two time zones abbreviated “ACT”, two “ADT”, two “AMST”, two “AMT”, and two “AST”, and those are just the ones starting with A. <http://www.timeanddate.com/time/zones/>