🇲🇳 Ulaanbaatar, Mongolia
21
- Ulaanbaatar Standard Time
- UTC+8
- Daytime
☀️ 07:04 · 🌙 18:16 · 11 h 12 min
Ulaanbaatar to Seoul: time difference
Seoul is 1 h ahead of Ulaanbaatar. 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.
Ulaanbaatar 09:34 9:34 AM Seoul 10:34 10:34 AM You –:–
09:34 9:34 AM
Ulaanbaatar Standard Time · UTC+8
☀️ 07:04 · 🌙 18:16
10:34 10:34 AM
Korean Standard Time · UTC+9
☀️ 06:36 · 🌙 18:04
·
+1 h
Seoul is 1 h ahead of Ulaanbaatar.
When you, Ulaanbaatar 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
🇲🇳 Ulaanbaatar
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
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- Both working
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Time zones side by side
| Detail | 🇲🇳 Ulaanbaatar | 🇰🇷 Seoul |
|---|---|---|
| Local time | 09:34 | 10:34 |
| 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 Ulaanbaatar | — | +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 | 1,401,200 | 9,509,458 |
Compare Ulaanbaatar with another city
More comparisons with Ulaanbaatar: the time zones next to it and the far side of the clock.
Big time differences
Ulaanbaatar and Seoul: common questions
What is the time difference between Ulaanbaatar and Seoul?
Seoul is 1 hour ahead: it uses UTC+9, while Ulaanbaatar is on UTC+8.
What time is it in Seoul when it is 9:00 AM in Ulaanbaatar?
When it is 9:00 AM in Ulaanbaatar, it is 10:00 AM in Seoul.
If it is 6:00 PM in Ulaanbaatar, what time is it in Seoul?
At 6:00 PM in Ulaanbaatar, clocks in Seoul show 7:00 PM.
When do working hours in Ulaanbaatar and in Seoul overlap?
Working hours (9:00 AM–6:00 PM) overlap from 9:00 AM to 5:00 PM in Ulaanbaatar, which is 10:00 AM to 6:00 PM in Seoul.
From what time in Ulaanbaatar is it tomorrow in Seoul?
Once it is 11:00 PM in Ulaanbaatar, the date in Seoul has already changed. Until 1:00 AM in Seoul, it is still the previous day in Ulaanbaatar.
Does the time difference between Ulaanbaatar and Seoul change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
