Add Adamstown (Pitcairn Islands) to your list and use my-locations table to visually convert it's time to another timezone or city time.
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Current time zone for Adamstown (Pitcairn Islands) is Pacific/Pitcairn, whose offset is GMT-8 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Adamstown, Pitcairn Islands is "Pacific/Pitcairn"

It currently does not observe Daylight Savings Time.