Where the Asia/Ulaanbaatar time zone is used
Countries: 🇲🇳 Mongolia.
Area covered: most of Mongolia.
Also known in software as: Asia/Choibalsan, Asia/Ulan_Bator.
Largest cities on Asia/Ulaanbaatar
Ulan BatorUlaanbaatar
ErdenetOrhon
DarhanDarhan Uul
ChoibalsanEast Aimak
NalayhUlaanbaatar
MörönKhövsgöl Province
BayanhongorBayankhongor
ArvayheerÖvörhangay
BogdÖvörhangay
DalandzadgadÖmnögovĭ
UndurkhaanHentiy
SühbaatarSelenge Province
Asia/Ulaanbaatar time zone
Ulaanbaatar Time
Ulaanbaatar Standard Time (UTC+8)
IANA: Asia/Ulaanbaatar · UTC+8
Daylight saving time in Asia/Ulaanbaatar
Asia/Ulaanbaatar does not use daylight saving time. The offset stays UTC+8 all year.
Sunrise and sunset in Asia/Ulaanbaatar today
Sunrise 06:51 · Sunset 18:32
Daylight 11h 41m · Solar noon 12:41
Time in Asia/Ulaanbaatar vs major world cities
| City | Local time | Difference from Asia/Ulaanbaatar |
|---|
| New York | Thu | 12 hours behind |
| Los Angeles | Thu | 15 hours behind |
| London | Thu | 7 hours behind |
| Paris | Thu | 6 hours behind |
| Dubai | Thu | 4 hours behind |
| Mumbai | Thu | 2.5 hours behind |
| Singapore | Fri | same time |
| Tokyo | Fri | 1 hour ahead |
| Sydney | Fri | 2 hours ahead |
| Johannesburg | Thu | 6 hours behind |
| São Paulo | Thu | 11 hours behind |
| Chicago | Thu | 13 hours behind |
What time zone is Asia/Ulaanbaatar in?
Clocks in Asia/Ulaanbaatar run on Ulaanbaatar Time (UTC+8, UTC+8); software knows the zone as Asia/Ulaanbaatar.
Does Asia/Ulaanbaatar observe daylight saving time?
No. Asia/Ulaanbaatar keeps UTC+8 all year, so its time difference with places that do change their clocks shifts by an hour twice a year.
Asia/Ulaanbaatar in software and databases
Older software may still use Asia/Choibalsan, Asia/Ulan_Bator; these are aliases of Asia/Ulaanbaatar and give identical times.
Standard offset UTC+8, no daylight saving time (as of 2026).
October 2026 calendar for Asia/Ulaanbaatar
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|
| | | 1 | 2 | 3 | 4 |
| 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| 26 | 27 | 28 | 29 | 30 | 31 | |
Frequently asked questions about Asia/Ulaanbaatar
What time zone is Asia/Ulaanbaatar in?
Ulaanbaatar Time (UTC+8), UTC+8; IANA zone Asia/Ulaanbaatar.
Does Asia/Ulaanbaatar have daylight saving time?
No, it stays on UTC+8 all year.