Mongolia to Seoul: time difference
Seoul is 1 h ahead of Mongolia. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Mongolia 08:54 8:54 AM Seoul 09:54 9:54 AM You –:–
08:54 8:54 AM
Ulaanbaatar Standard Time · UTC+8
☀️ 07:04 · 🌙 18:16
09:54 9:54 AM
Korean Standard Time · UTC+9
☀️ 06:36 · 🌙 18:04
·
+1 h
Seoul is 1 h ahead of Mongolia.
When you, Mongolia and Seoul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇲🇳 Mongolia
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇰🇷 Seoul
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇲🇳 Mongolia | 🇰🇷 Seoul |
|---|---|---|
| Local time | 08:54 | 09:54 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Ulaanbaatar Standard Time | Korean Standard Time |
| UTC offset | UTC+8 | UTC+9 |
| Offset from Mongolia | — | +1 h |
| IANA zone | Asia/Ulaanbaatar | Asia/Seoul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 07:04 | 06:36 |
| Sunset | 18:16 | 18:04 |
| Daylight | 11 h 12 min | 11 h 29 min |
| People on this clock | 3,409,939 | 9,509,458 |
Compare Mongolia with another city
More comparisons with Mongolia: the time zones next to it and the far side of the clock.
Big time differences
Mongolia and Seoul: common questions
How far ahead of Mongolia is Seoul?
Seoul is 1 hour ahead of Mongolia: UTC+9 against UTC+8.
What time is it in Seoul when it is 9:00 AM in Mongolia?
When it is 9:00 AM in Mongolia, it is 10:00 AM in Seoul.
What time is it in Seoul at the end of the working day in Mongolia?
The working day in Mongolia ends at 6:00 PM; in Seoul it is 7:00 PM at that moment.
When is a good time to call Seoul from Mongolia?
Between 9:00 AM and 5:00 PM in Mongolia – that is 10:00 AM to 6:00 PM in Seoul – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Seoul?
From 11:00 PM in Mongolia it is already the next day in Seoul. The other way round, until 1:00 AM in Seoul it is still the previous day in Mongolia.
Is the time difference between Mongolia and Seoul the same all year?
Yes. Neither Mongolia nor Seoul switches to summer time, so the gap is always 1 hour.
