Add Чойбалсан (Монголия) to your list and use my-locations table to visually convert it's time to another timezone or city time.
Mouse over the colored hour-tiles and glance at the hours selected by the column.

Current time zone for Чойбалсан (Монголия) is Asia/Choibalsan, whose offset is GMT+8 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Чойбалсан, Монголия is "Asia/Choibalsan"

It currently does not observe Daylight Savings Time.