Hefei to Seoul: time difference
Seoul is 1 h ahead of Hefei. 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.
Hefei 02:28 2:28 AM Seoul 03:28 3:28 AM You –:–
02:28 2:28 AM
China Standard Time · UTC+8
☀️ 06:17 · 🌙 17:36
03:28 3:28 AM
Korean Standard Time · UTC+9
☀️ 06:44 · 🌙 17:52
·
+1 h
Seoul is 1 h ahead of Hefei.
When you, Hefei 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
🇨🇳 Hefei
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 | 🇨🇳 Hefei | 🇰🇷 Seoul |
|---|---|---|
| Local time | 02:28 | 03:28 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | China Standard Time | Korean Standard Time |
| UTC offset | UTC+8 | UTC+9 |
| Offset from Hefei | — | +1 h |
| IANA zone | Asia/Shanghai | Asia/Seoul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:17 | 06:44 |
| Sunset | 17:36 | 17:52 |
| Daylight | 11 h 19 min | 11 h 8 min |
| People on this clock | 9,369,881 | 9,509,458 |
Compare Hefei with another city
More comparisons with Hefei: the time zones next to it and the far side of the clock.
Big time differences
Hefei and Seoul: common questions
How many hours ahead of Hefei is Seoul?
The clocks in Seoul are 1 hour ahead of those in Hefei (UTC+9 and UTC+8).
If it is 9:00 AM in Hefei, what time is it in Seoul?
At 9:00 AM in Hefei, clocks in Seoul show 10:00 AM.
What time is it in Seoul when it is 6:00 PM in Hefei?
When it is 6:00 PM in Hefei, it is 7:00 PM in Seoul.
When is a good time to call Seoul from Hefei?
Between 9:00 AM and 5:00 PM in Hefei – that is 10:00 AM to 6:00 PM in Seoul – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Seoul compared with Hefei?
The new day starts in Seoul earlier: at 11:00 PM in Hefei it is already midnight there. Until 1:00 AM in Seoul, Hefei is still on the previous day.
Does the time difference between Hefei and Seoul change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
