Shanghai to Ilsan: time difference
Ilsan 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 23:34 11:34 PM Ilsan 00:34 12:34 AM You –:–
23:34 11:34 PM
China Standard Time · UTC+8
☀️ 05:58 · 🌙 17:22
00:34 12:34 AM
Korean Standard Time · UTC+9
☀️ 06:44 · 🌙 17:54
·
+1 h
Ilsan is 1 h ahead of Shanghai.
When you, Shanghai and Ilsan 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
🇰🇷 Ilsan
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 | 🇰🇷 Ilsan |
|---|---|---|
| Local time | 23:34 | 00:34 |
| Local date | Saturday, October 17, 2026 | Sunday, October 18, 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 | 05:58 | 06:44 |
| Sunset | 17:22 | 17:54 |
| Daylight | 11 h 23 min | 11 h 10 min |
| People on this clock | 24,870,895 | 1,061,752 |
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 Ilsan: common questions
What is the time difference between Shanghai and Ilsan?
Ilsan is 1 hour ahead: it uses UTC+9, while Shanghai is on UTC+8.
If it is 9:00 AM in Shanghai, what time is it in Ilsan?
At 9:00 AM in Shanghai, clocks in Ilsan show 10:00 AM.
If it is 6:00 PM in Shanghai, what time is it in Ilsan?
At 6:00 PM in Shanghai, clocks in Ilsan show 7:00 PM.
Is there a time when both Shanghai and Ilsan are at work?
Yes: from 9:00 AM to 5:00 PM in Shanghai (10:00 AM to 6:00 PM in Ilsan), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in Ilsan compared with Shanghai?
The new day starts in Ilsan earlier: at 11:00 PM in Shanghai it is already midnight there. Until 1:00 AM in Ilsan, Shanghai is still on the previous day.
Does the time difference between Shanghai and Ilsan change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
