The short answer

11am in Ulan Bator is 4am in Greenwich Mean Time.

Ulan Bator is 7 hours ahead of Greenwich Mean Time. It lands deep outside working hours in Greenwich Mean Time — see the best time to meet below for a friendlier slot.

Ulan Bator
11am
Greenwich Mean Time
4am
Right now
3am+08:00 · UTC+08:00 · Thu, Jun 25
8pmBST · UTC+01:00 · Wed, Jun 24
Read across to convert
Ulan Bator
+08:00 · UTC+08:00
3am ☾
Greenwich Mean Time
BST · UTC+01:00
8pm ☾
Pinned11amUlan Bator=4amGreenwich Mean Time
12amThu
5pmWed ·−1d
1am
6pmWed ·−1d
2am
7pmWed ·−1d
NOW
3am
8pmWed ·−1d
4am
9pmWed ·−1d
5am
10pmWed ·−1d
6am
11pmWed ·−1d
7am
12amThu
8am
1am
9am
WORK
2am
10am
WORK
3am
PINNED
11am
WORK
4am
12pm
WORK
5am
1pm
WORK
6am
2pm
WORK
7am
3pm
WORK
8am
4pm
WORK
9am
WORK
5pm
10am
WORK
6pm
11am
WORK
7pm
12pm
WORK
8pm
1pm
WORK
9pm
2pm
WORK
10pm
3pm
WORK
11pm
4pm
WORK
daylightnightworking hoursoverlap
Best time to meet
Best for a call
Ulan Bator
4pm–5pm
=
Greenwich Mean Time
9am–10am
Popular conversions

Quick reference.

9amUlan Bator=2amGreenwich Mean Time
12pmUlan Bator=5amGreenwich Mean Time
3pmUlan Bator=8amGreenwich Mean Time
5pmUlan Bator=10amGreenwich Mean Time
9pmUlan Bator=2pmGreenwich Mean Time
In context

What each side covers.

Ulan Bator
+08:00 · UTC+08:00
3am

Mongolia

Greenwich Mean Time
BST · UTC+01:00
8pm
Cities on this clock

Frequently asked

Quick answers about converting between Ulan Bator and Greenwich Mean Time. Can't find what you need? Email [email protected].

What is the time difference between Ulan Bator and Greenwich Mean Time?
Ulan Bator is 7 hours ahead of Greenwich Mean Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
When it's 11am in Ulan Bator, what time is it in Greenwich Mean Time?
11am in Ulan Bator is 4am in Greenwich Mean Time. It lands deep outside working hours in Greenwich Mean Time — see the best time to meet below for a friendlier slot. Use the hour-by-hour table above to read any other time across.
What's the best time for a call between Ulan Bator and Greenwich Mean Time?
4pm–5pm in Ulan Bator lines up with 9am–10am in Greenwich Mean Time — both sides are inside a 9-to-5 working day.
Does this account for daylight saving time?
Yes. We track every clock change in both places, so the abbreviations you see — +08:00 and BST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
Why is the date sometimes different on each side?
When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.