Seoul to Shanghai: time difference
Shanghai 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 10:55 10:55 AM Shanghai 09:55 9:55 AM You –:–
10:55 10:55 AM
Korean Standard Time · UTC+9
☀️ 06:36 · 🌙 18:04
09:55 9:55 AM
China Standard Time · UTC+8
☀️ 05:54 · 🌙 17:30
·
−1 h
Shanghai is 1 h behind Seoul.
When you, Seoul 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
🇰🇷 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
🇨🇳 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 | 🇰🇷 Seoul | 🇨🇳 Shanghai |
|---|---|---|
| Local time | 10:55 | 09:55 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 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 | 06:36 | 05:54 |
| Sunset | 18:04 | 17:30 |
| Daylight | 11 h 29 min | 11 h 36 min |
| People on this clock | 9,509,458 | 24,870,895 |
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 Shanghai: common questions
What is the time difference between Seoul and Shanghai?
Shanghai is 1 hour behind: it uses UTC+8, while Seoul is on UTC+9.
What time is it in Shanghai when it is 9:00 AM in Seoul?
When it is 9:00 AM in Seoul, it is 8:00 AM in Shanghai.
If it is 6:00 PM in Seoul, what time is it in Shanghai?
At 6:00 PM in Seoul, clocks in Shanghai show 5:00 PM.
When is a good time to call Shanghai from Seoul?
Between 10:00 AM and 6:00 PM in Seoul – that is 9:00 AM to 5:00 PM in Shanghai – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Shanghai?
Until 1:00 AM in Seoul it is still the previous day in Shanghai. The other way round, from 11:00 PM in Shanghai it is already the next day in Seoul.
Does the time gap between Seoul and Shanghai change during the year?
No, the clocks change neither in Seoul nor in Shanghai, so the gap is 1 hour all year round.
