The short answer

Ulan Bator is 7 hours ahead of Irish Standard Time.

Ulan Bator
1:03:22am
+08:00 · UTC+08:00 · Thu, Jun 25
Irish Standard Time
6:03:22pm
IST · UTC+01:00 · Wed, Jun 24
Read across to convert
Ulan Bator
+08:00 · UTC+08:00
1:03am ☾
Irish Standard Time
IST · UTC+01:00
6:03pm ☾
Click any row to pin that hour across both zones.
12amThu
5pmWed ·−1d
NOW
1am
6pmWed ·−1d
2am
7pmWed ·−1d
3am
8pmWed ·−1d
4am
9pmWed ·−1d
5am
10pmWed ·−1d
6am
11pmWed ·−1d
7am
12amThu
8am
1am
9am
WORK
2am
10am
WORK
3am
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
=
Irish Standard Time
9am–10am
Popular conversions

Quick reference.

9amUlan Bator=2amIrish Standard Time
12pmUlan Bator=5amIrish Standard Time
3pmUlan Bator=8amIrish Standard Time
5pmUlan Bator=10amIrish Standard Time
9pmUlan Bator=2pmIrish Standard Time
In context

What each side covers.

Ulan Bator
+08:00 · UTC+08:00
1:03am

Mongolia

Irish Standard Time
IST · UTC+01:00
6:03pm
Cities on this clock

Frequently asked

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

What is the time difference between Ulan Bator and Irish Standard Time?
Ulan Bator is 7 hours ahead of Irish Standard 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 9am in Ulan Bator, what time is it in Irish Standard Time?
9am in Ulan Bator is 2am in Irish Standard Time. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
What's the best time for a call between Ulan Bator and Irish Standard Time?
4pm–5pm in Ulan Bator lines up with 9am–10am in Irish Standard 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 IST — 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.