DST of Ulaanbaatar in 2025
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
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At Sat Mar 29 02:00:00 2025, clocks in Ulaanbaatar are turned forward 1 hour to Sat Mar 29 03:00:00 2025 to start DST
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At Sat Sep 27 00:00:00 2025, clocks in Ulaanbaatar are turned backward 1 hour to Fri Sep 26 23:00:00 2025 to end DST
DST of Ulaanbaatar Over Years
| Year | Commences | Abbreviations | Time Change | Offset After |
| 1980 - 1982 | No changes, UTC+0800 all of the period | |||
| 1983 | 04-01, Fri 01:00 |
ULAT -> ULAST | 1 hour forward (start of DST) | UTC+0900 |
| 09-30, Fri 23:00 |
ULAST -> ULAT | 1 hour backward (end of DST) | UTC+0800 | |
| 1984 | 04-01, Sun 01:00 |
ULAT -> ULAST | 1 hour forward (start of DST) | UTC+0900 |
| 09-29, Sat 23:00 |
ULAST -> ULAT | 1 hour backward (end of DST) | UTC+0800 | |
| 1985 | 03-31, Sun 01:00 |
ULAT -> ULAST | 1 hour forward (start of DST) | UTC+0900 |
| 09-28, Sat 23:00 |
ULAST -> ULAT | 1 hour backward (end of DST) | UTC+0800 | |
| 1986 | 03-30, Sun 01:00 |
ULAT -> ULAST | 1 hour forward (start of DST) | UTC+0900 |
| 09-27, Sat 23:00 |
ULAST -> ULAT | 1 hour backward (end of DST) | UTC+0800 | |
| 1987 | 03-29, Sun 01:00 |
ULAT -> ULAST | 1 hour forward (start of DST) | UTC+0900 |
| 09-26, Sat 23:00 |
ULAST -> ULAT | 1 hour backward (end of DST) | UTC+0800 | |
| 1988 | 03-27, Sun 01:00 |
ULAT -> ULAST | 1 hour forward (start of DST) | UTC+0900 |
| 09-24, Sat 23:00 |
ULAST -> ULAT | 1 hour backward (end of DST) | UTC+0800 | |
| 1989 | 03-26, Sun 01:00 |
ULAT -> ULAST | 1 hour forward (start of DST) | UTC+0900 |
| 09-23, Sat 23:00 |
ULAST -> ULAT | 1 hour backward (end of DST) | UTC+0800 | |
