Time difference between Seoul and Shanghai: 1 hour
Seoul
South Korea · UTC+9
--:--:--
Shanghai
China · UTC+8
--:--:--
Seoul is 1 hour ahead of Shanghai
Best time for a call or meeting
Seoul 10:00–18:00 = Shanghai 09:00–17:00
Both cities are within business hours (9:00–18:00).
Convert a specific time
→ Shanghai
Hour-by-hour conversion
| Seoul | Shanghai |
|---|---|
| 00:00 | 23:00 |
| 01:00 | 00:00 |
| 02:00 | 01:00 |
| 03:00 | 02:00 |
| 04:00 | 03:00 |
| 05:00 | 04:00 |
| 06:00 | 05:00 |
| 07:00 | 06:00 |
| 08:00 | 07:00 |
| 09:00 | 08:00 |
| 10:00 | 09:00 |
| 11:00 | 10:00 |
| 12:00 | 11:00 |
| 13:00 | 12:00 |
| 14:00 | 13:00 |
| 15:00 | 14:00 |
| 16:00 | 15:00 |
| 17:00 | 16:00 |
| 18:00 | 17:00 |
| 19:00 | 18:00 |
| 20:00 | 19:00 |
| 21:00 | 20:00 |
| 22:00 | 21:00 |
| 23:00 | 22:00 |
Business hours 9–18 Waking hours 7–22 Night / early morning
Daylight saving time can change the difference by season. Shown values reflect the current offset.
Frequently asked questions
How many hours is the time difference between Seoul and Shanghai?
Seoul is 1 hour ahead of Shanghai. When it is 12:00 noon in Seoul, it is 11:00 in Shanghai.
Does daylight saving time affect the difference?
No. Neither place observes daylight saving time, so the difference stays the same all year.
What is the best time for a call or meeting?
Seoul 10:00–18:00 = Shanghai 09:00–17:00. Both cities are within business hours (9:00–18:00).