Missing Portland / Maine

[zhe-t]

The dataset is missing Portland Maine/Oregon. Is this a bug or am I misunderstanding something?

[KevinNovak]

Not every city is the name of a time zone. This project uses the IANA time zone database which has ~400 time zones. A time zone's name is typically based on the largest city in the region that all follow the same rules. For example, for Portland, the largest city that follows the same time zone rules is Los Angeles. So the time zone name is America/Los_Angeles.