What time is it in Ulaanbaatar?

Mongolia spans 2 time zones, so the answer depends on where in it you mean. Ulaanbaatar covers most of mongolia and is on the same clock as Ulaanbaatar, though the two are separate zones in the IANA database and can diverge when daylight saving rules differ.

Ulaanbaatar does not observe daylight saving, so its offset from UTC never moves. Its relationship to places that do change shifts twice a year instead.