Shanghai to Jeju: time difference
Jeju is 1 h ahead of Shanghai. 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.
Shanghai 19:56 7:56 PM Jeju 20:56 8:56 PM You –:–
19:56 7:56 PM
China Standard Time · UTC+8
☀️ 05:54 · 🌙 17:30
20:56 8:56 PM
Korean Standard Time · UTC+9
☀️ 06:35 · 🌙 18:09
·
+1 h
Jeju is 1 h ahead of Shanghai.
When you, Shanghai and Jeju are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇨🇳 Shanghai
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
🇰🇷 Jeju
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 | 🇨🇳 Shanghai | 🇰🇷 Jeju |
|---|---|---|
| Local time | 19:56 | 20:56 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | China Standard Time | Korean Standard Time |
| UTC offset | UTC+8 | UTC+9 |
| Offset from Shanghai | — | +1 h |
| IANA zone | Asia/Shanghai | Asia/Seoul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:54 | 06:35 |
| Sunset | 17:30 | 18:09 |
| Daylight | 11 h 36 min | 11 h 34 min |
| People on this clock | 24,870,895 | 469,279 |
Compare Shanghai with another city
More comparisons with Shanghai: the time zones next to it and the far side of the clock.
Big time differences
Shanghai and Jeju: common questions
How many hours ahead of Shanghai is Jeju?
The clocks in Jeju are 1 hour ahead of those in Shanghai (UTC+9 and UTC+8).
If it is 9:00 AM in Shanghai, what time is it in Jeju?
At 9:00 AM in Shanghai, clocks in Jeju show 10:00 AM.
What time is it in Jeju at the end of the working day in Shanghai?
The working day in Shanghai ends at 6:00 PM; in Jeju it is 7:00 PM at that moment.
Is there a time when both Shanghai and Jeju are at work?
Yes: from 9:00 AM to 5:00 PM in Shanghai (10:00 AM to 6:00 PM in Jeju), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Jeju compared with Shanghai?
The new day starts in Jeju earlier: at 11:00 PM in Shanghai it is already midnight there. Until 1:00 AM in Jeju, Shanghai is still on the previous day.
Is the time difference between Shanghai and Jeju the same all year?
Yes. Neither Shanghai nor Jeju switches to summer time, so the gap is always 1 hour.
