Zhengzhou to Seoul: time difference
Seoul is 1 h ahead of Zhengzhou. 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.
Zhengzhou 00:05 12:05 AM Seoul 01:05 1:05 AM You –:–
00:05 12:05 AM
China Standard Time · UTC+8
☀️ 06:34 · 🌙 17:49
01:05 1:05 AM
Korean Standard Time · UTC+9
☀️ 06:44 · 🌙 17:52
·
+1 h
Seoul is 1 h ahead of Zhengzhou.
When you, Zhengzhou 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
🇨🇳 Zhengzhou
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 | 🇨🇳 Zhengzhou | 🇰🇷 Seoul |
|---|---|---|
| Local time | 00:05 | 01:05 |
| 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 Zhengzhou | — | +1 h |
| IANA zone | Asia/Shanghai | Asia/Seoul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:34 | 06:44 |
| Sunset | 17:49 | 17:52 |
| Daylight | 11 h 15 min | 11 h 8 min |
| People on this clock | 12,600,574 | 9,509,458 |
Compare Zhengzhou with another city
More comparisons with Zhengzhou: the time zones next to it and the far side of the clock.
Big time differences
Zhengzhou and Seoul: common questions
How many hours ahead of Zhengzhou is Seoul?
The clocks in Seoul are 1 hour ahead of those in Zhengzhou (UTC+9 and UTC+8).
What time is it in Seoul at the start of the working day in Zhengzhou?
The working day in Zhengzhou starts at 9:00 AM; in Seoul it is 10:00 AM at that moment.
What time is it in Seoul when it is 6:00 PM in Zhengzhou?
When it is 6:00 PM in Zhengzhou, it is 7:00 PM in Seoul.
When is a good time to call Seoul from Zhengzhou?
Between 9:00 AM and 5:00 PM in Zhengzhou – 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 Zhengzhou?
The new day starts in Seoul earlier: at 11:00 PM in Zhengzhou it is already midnight there. Until 1:00 AM in Seoul, Zhengzhou is still on the previous day.
Does the time gap between Zhengzhou and Seoul change during the year?
No, the clocks change neither in Zhengzhou nor in Seoul, so the gap is 1 hour all year round.
