Ulaanbaatar doesn't observe daylight saving time but Sorocaba does. DST in Sorocaba started on 04 November 2018 and ended on 17 February 2019. When DST is observed in Sorocaba the time difference between Sorocaba and Ulaanbaatar is 10:0 hours.
Time zone: BRT - Brasilia time (UTC/GMT -3)DST started on 04 November 2018DST ended on 17 February 2019Time zone difference / Flight distance
Time zone: ULAT - Ulaanbaatar Time (UTC/GMT +8)Time zone difference / Flight distance