Clock change · IANA tzdata 2026e
Does Mongolia change its clocks?
No: Mongolia keeps the same time all year, UTC+8. IANA tzdata 2026e has no clock change scheduled.
No clock change
UTC+8 all year
Last changeSaturday, 24 September 2016: the clocks went back 1 hour, from UTC+9 to UTC+8.
Now in UlaanbaatarUTC+8
2 time zones
Time zones of Mongolia
Time zones that change on the same dates at the same local time are grouped together.
No clock change
Same time all year
Ulaanbaatar Standard TimeUTC+8
Ulaanbaatar, Erdenet, Darhan, Choybalsan
Last change: 23 September 2016
Khovd Standard TimeUTC+7
Altay, Ulaangom, Olgiy, Dund-Us
Last change: 23 September 2016
History
When did Mongolia last change its clocks?
Saturday, 24 September 2016: the clocks went back 1 hour, from UTC+9 to UTC+8.
No clock change in 2026–2028.
Questions
Clock changes in Mongolia: questions
When do the clocks change in Mongolia in 2026?
There is no clock change in Mongolia in 2026: UTC+8 all year.
Do the clocks go forward or back?
Neither: Mongolia keeps UTC+8 all year.
Will I get an hour more sleep?
No: the clocks do not change in Mongolia, so every night has its usual length.
Does Mongolia still use daylight saving time?
No: Mongolia keeps UTC+8 all year. The clocks last changed on Saturday, 24 September 2016.