Sunrise and sunset in Altai, Mongolia
Sunrise, sunset and twilight for Altai today, in local time. At 46.4° N, days run from 8 h 36 min at the winter solstice to 15 h 48 min at the summer solstice.
- 17:25sunset today
Today · worked out at
The Sun is up from 07:11 to 17:25 in Altai, Mongolia on Thursday, October 29.
Day length 10 h 14 min, 3 min 1 s shorter than yesterday.
Solar noon at 12:18, with the Sun 30° above the horizon.
Times are Altai time (GMT+7).
Twilight and golden hour today
| Today | Morning | Evening |
|---|---|---|
| Astronomical twilight | 05:29 | 19:06 |
| Nautical twilight | 06:04 | 18:31 |
| Civil twilight | 06:40 | 17:56 |
| Sunrise and sunset | 07:11 | 17:25 |
| Golden hour | 07:11–07:54 | 16:42–17:25 |
Each twilight begins at the morning time and ends at the evening one.
The year in Altai
- Longest day: June 21, 15 h 48 min, from sunrise at 04:42 to sunset at 20:30.
- Shortest day: December 22, 8 h 36 min, from sunrise at 08:15 to sunset at 16:51.
Sunrise and sunset on the 21st of each month, 2026
| Date | Sunrise | Sunset | Day length |
|---|---|---|---|
| January 21 | 08:10 | 17:22 | 9 h 13 min |
| February 21 | 07:29 | 18:08 | 10 h 40 min |
| March 21 | 06:36 | 18:48 | 12 h 12 min |
| April 21 | 05:38 | 19:30 | 13 h 52 min |
| May 21 | 04:55 | 20:08 | 15 h 13 min |
| June 21 | 04:42 | 20:30 | 15 h 48 min |
| July 21 | 05:03 | 20:18 | 15 h 16 min |
| August 21 | 05:40 | 19:34 | 13 h 54 min |
| September 21 | 06:20 | 18:35 | 12 h 15 min |
| October 21 | 07:00 | 17:38 | 10 h 38 min |
| November 21 | 07:44 | 16:56 | 9 h 12 min |
| December 21 | 08:15 | 16:50 | 8 h 36 min |
Good to know
- Sunrise and sunset mark the moment the Sun’s upper edge touches a level horizon, with the air’s usual bending of light allowed for. Hills, buildings and altitude move what you see by a few minutes.
- Civil, nautical and astronomical twilight end when the Sun is 6°, 12° and 18° below the horizon. Golden hour here is the photographers’ usual definition: the Sun less than 6° above it.
- Worked out when the page loads from NOAA’s solar equations, for 46.4° N, 96.3° E, and accurate to about a minute.
How the layers work, where their data comes from and what they can’t tell you: Day and night, live, The Sun, Moon and planets