Look up the exact time darkness falls in Ulaanbaatar for any date of the year. Sunset times, civil dusk, full twilight schedule, and daylight changes.
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Today — Thursday, November 5, 2026
It gets dark at 06:02 PM in Ulaanbaatar
Sunrise
07:41 AM
Sunset
05:30 PM
Gets Dark
06:02 PM
Day Length
9h 49m
Ulaanbaatar is losing 3m 3s of daylight per day
Darkness arrives earliest on December 10 at 5:35 PM and latest on June 25 at 9:36 PM, a swing of 4 h 1 min across the year.
The longest day brings 16 h 2 min of daylight and the shortest just 8 h 23 min. The earliest dusk comes about 12 days away from the shortest day, because Earth's oval orbit shifts solar noon through the year.
After sunset, twilight lasts about 31 min at the March equinox and stretches to 41 min in midsummer. Near the equator it is only about 21 min year-round.
In Ulaanbaatar, on 81 evenings it stays light until after 9 pm, while on 68 days it is dark before 6 pm.
Ulaanbaatar sits toward the western side of its time zone, so the sun runs about 50 min behind the clock. That pushes sunsets later than in towns further east.
Ulaanbaatar lies 5,329 km (3,311 miles) north of the equator at 47.92°N. That is almost the same latitude as Seattle, so both see a similar yearly rhythm of daylight.
This page shows exactly when it gets dark in Ulaanbaatar, Mongolia for any day of the year. The interactive tool above lets you pick any date to see the precise sunset time, civil dusk (when true darkness begins), and the full twilight schedule including nautical and astronomical dawn and dusk.
Ulaanbaatar is located at latitude 47.92° and longitude 106.92°. The time darkness falls changes throughout the year based on Earth's axial tilt — earlier in winter, later in summer. Use the date picker above to check any date.
Whether you're planning trick-or-treating for Halloween, a fireworks display, an outdoor wedding, or an evening event in Ulaanbaatar, knowing the exact time darkness falls is essential. This tool calculates civil dusk — when the sun drops 6 degrees below the horizon — for any date at Ulaanbaatar's exact coordinates.
The site also shows the daily daylight delta — how much daylight Ulaanbaatar is gaining or losing each day — and a year-long daylight curve showing how day length rises and falls across all 365 days.