June 12, 2026 · Ulaanbaatar, Mongolia
Sunset in Ulaanbaatar today is at 20:52. Day length is 15h 58m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Ulaanbaatar's coordinates and updated daily.
Ulaanbaatar lies at 48°N. At this latitude, day length varies significantly through the year — from roughly 7–8 hours in midwinter to 16–17 hours at midsummer.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Ulaanbaatar.
The longest day in Ulaanbaatar is around 16h 2m (around June 21). The shortest is around 8h 23m (around December 21). Days are currently getting longer — gaining about 1 minute per day.
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 17:26 | 08:38 | 8h 48m |
| February | 18:14 | 08:01 | 10h 14m |
| March | 18:57 | 07:08 | 11h 49m |
| April | 19:41 | 06:05 | 13h 37m |
| May | 20:24 | 05:16 | 15h 8m |
| June | 20:54 | 04:54 | 15h 60m |
| July | 20:49 | 05:09 | 15h 40m |
| August | 20:08 | 05:48 | 14h 21m |
| September | 19:08 | 06:30 | 12h 38m |
| October | 18:07 | 07:11 | 10h 55m |
| November | 17:17 | 07:58 | 9h 19m |
| December | 17:01 | 08:35 | 8h 25m |