Cheonan to Shanghai: time difference
Shanghai is 1 h behind Cheonan. 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.
Cheonan 03:57 3:57 AM Shanghai 02:57 2:57 AM You –:–
03:57 3:57 AM
Korean Standard Time · UTC+9
☀️ 06:44 · 🌙 17:51
02:57 2:57 AM
China Standard Time · UTC+8
☀️ 06:01 · 🌙 17:19
·
−1 h
Shanghai is 1 h behind Cheonan.
When you, Cheonan and Shanghai are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇰🇷 Cheonan
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
🇨🇳 Shanghai
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 | 🇰🇷 Cheonan | 🇨🇳 Shanghai |
|---|---|---|
| Local time | 03:57 | 02:57 |
| 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 Cheonan | — | −1 h |
| IANA zone | Asia/Seoul | Asia/Shanghai |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:44 | 06:01 |
| Sunset | 17:51 | 17:19 |
| Daylight | 11 h 7 min | 11 h 18 min |
| People on this clock | 658,486 | 24,870,895 |
Compare Cheonan with another city
More comparisons with Cheonan: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Cheonan and Shanghai: common questions
What is the time difference between Cheonan and Shanghai?
Shanghai is 1 hour behind: it uses UTC+8, while Cheonan is on UTC+9.
What time is it in Shanghai when it is 9:00 AM in Cheonan?
When it is 9:00 AM in Cheonan, it is 8:00 AM in Shanghai.
What time is it in Shanghai at the end of the working day in Cheonan?
The working day in Cheonan ends at 6:00 PM; in Shanghai it is 5:00 PM at that moment.
Is there a time when both Cheonan and Shanghai are at work?
Yes: from 10:00 AM to 6:00 PM in Cheonan (9:00 AM to 5:00 PM in Shanghai), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Shanghai compared with Cheonan?
The new day starts in Shanghai later: until 1:00 AM in Cheonan, it is still the previous day there. From 11:00 PM in Shanghai, Cheonan is already on the next day.
Is the time difference between Cheonan and Shanghai the same all year?
Yes. Neither Cheonan nor Shanghai switches to summer time, so the gap is always 1 hour.
