Seoul to Tonghua: time difference
Tonghua is 1 h behind Seoul. 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.
Seoul 19:45 7:45 PM Tonghua 18:45 6:45 PM You –:–
19:45 7:45 PM
Korean Standard Time · UTC+9
☀️ 06:45 · 🌙 17:50
18:45 6:45 PM
China Standard Time · UTC+8
☀️ 05:54 · 🌙 16:50
·
−1 h
Tonghua is 1 h behind Seoul.
When you, Seoul and Tonghua are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇰🇷 Seoul
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
🇨🇳 Tonghua
23 11 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇰🇷 Seoul | 🇨🇳 Tonghua |
|---|---|---|
| Local time | 19:45 | 18:45 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Korean Standard Time | China Standard Time |
| UTC offset | UTC+9 | UTC+8 |
| Offset from Seoul | — | −1 h |
| IANA zone | Asia/Seoul | Asia/Shanghai |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:45 | 05:54 |
| Sunset | 17:50 | 16:50 |
| Daylight | 11 h 5 min | 10 h 56 min |
| People on this clock | 9,509,458 | 446,917 |
Compare Seoul with another city
More comparisons with Seoul: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Seoul and Tonghua: common questions
How many hours behind Seoul is Tonghua?
The clocks in Tonghua are 1 hour behind those in Seoul (UTC+8 and UTC+9).
What time is it in Tonghua when it is 9:00 AM in Seoul?
When it is 9:00 AM in Seoul, it is 8:00 AM in Tonghua.
If it is 6:00 PM in Seoul, what time is it in Tonghua?
At 6:00 PM in Seoul, clocks in Tonghua show 5:00 PM.
Is there a time when both Seoul and Tonghua are at work?
Yes: from 10:00 AM to 6:00 PM in Seoul (9:00 AM to 5:00 PM in Tonghua), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Tonghua compared with Seoul?
The new day starts in Tonghua later: until 1:00 AM in Seoul, it is still the previous day there. From 11:00 PM in Tonghua, Seoul is already on the next day.
Is the time difference between Seoul and Tonghua the same all year?
Yes. Neither Seoul nor Tonghua switches to summer time, so the gap is always 1 hour.
