Seoul to Zhengzhou: time difference
Zhengzhou 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 04:38 4:38 AM Zhengzhou 03:38 3:38 AM You –:–
04:38 4:38 AM
Korean Standard Time · UTC+9
☀️ 06:44 · 🌙 17:52
03:38 3:38 AM
China Standard Time · UTC+8
☀️ 06:34 · 🌙 17:48
·
−1 h
Zhengzhou is 1 h behind Seoul.
When you, Seoul and Zhengzhou 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
🇨🇳 Zhengzhou
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 | 🇨🇳 Zhengzhou |
|---|---|---|
| Local time | 04:38 | 03:38 |
| 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 | 06:34 |
| Sunset | 17:52 | 17:48 |
| Daylight | 11 h 8 min | 11 h 13 min |
| People on this clock | 9,509,458 | 12,600,574 |
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 Zhengzhou: common questions
How far behind Seoul is Zhengzhou?
Zhengzhou is 1 hour behind Seoul: UTC+8 against UTC+9.
If it is 9:00 AM in Seoul, what time is it in Zhengzhou?
At 9:00 AM in Seoul, clocks in Zhengzhou show 8:00 AM.
If it is 6:00 PM in Seoul, what time is it in Zhengzhou?
At 6:00 PM in Seoul, clocks in Zhengzhou show 5:00 PM.
Is there a time when both Seoul and Zhengzhou are at work?
Yes: from 10:00 AM to 6:00 PM in Seoul (9:00 AM to 5:00 PM in Zhengzhou), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Zhengzhou compared with Seoul?
The new day starts in Zhengzhou later: until 1:00 AM in Seoul, it is still the previous day there. From 11:00 PM in Zhengzhou, Seoul is already on the next day.
Does the time difference between Seoul and Zhengzhou change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
