Seoul to Hefei: time difference
Hefei 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 06:04 6:04 AM Hefei 05:04 5:04 AM You –:–
06:04 6:04 AM
Korean Standard Time · UTC+9
☀️ 06:44 · 🌙 17:52
05:04 5:04 AM
China Standard Time · UTC+8
☀️ 06:17 · 🌙 17:36
·
−1 h
Hefei is 1 h behind Seoul.
When you, Seoul and Hefei 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
🇨🇳 Hefei
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 | 🇨🇳 Hefei |
|---|---|---|
| Local time | 06:04 | 05:04 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 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 | 06:44 | 06:17 |
| Sunset | 17:52 | 17:36 |
| Daylight | 11 h 8 min | 11 h 19 min |
| People on this clock | 9,509,458 | 9,369,881 |
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 Hefei: common questions
How far behind Seoul is Hefei?
Hefei is 1 hour behind Seoul: UTC+8 against UTC+9.
What time is it in Hefei at the start of the working day in Seoul?
The working day in Seoul starts at 9:00 AM; in Hefei it is 8:00 AM at that moment.
What time is it in Hefei at the end of the working day in Seoul?
The working day in Seoul ends at 6:00 PM; in Hefei it is 5:00 PM at that moment.
Is there a time when both Seoul and Hefei are at work?
Yes: from 10:00 AM to 6:00 PM in Seoul (9:00 AM to 5:00 PM in Hefei), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Hefei compared with Seoul?
The new day starts in Hefei later: until 1:00 AM in Seoul, it is still the previous day there. From 11:00 PM in Hefei, Seoul is already on the next day.
Does the time gap between Seoul and Hefei change during the year?
No, the clocks change neither in Seoul nor in Hefei, so the gap is 1 hour all year round.
