How far apart are Seoul and China?
Seoul is 1 hour ahead of China. When Seoul clocks hit noon, China reads 11:00.
Seoul is in the Asia/Seoul timezone. China is in Asia/Shanghai. The difference is 1 hour.
Daily overlap window
Every working day, Seoul and China are both in business hours for 7 hours simultaneously.
00:0006:0012:0018:0024:00
When to schedule across time zones
Both Seoul and China are in standard hours simultaneously for 7h per day. 3 recommended slots shown below.
10:00 Seoul / 09:00 Beijing✓ Both working
11:00 Seoul / 10:00 Beijing✓ Both working
12:00 Seoul / 11:00 Beijing✓ Both working
Based on standard 09:00–17:00 working hours in each location's local time.
Holiday calendar for both locations
China
No upcoming public holidays this year.
Working across Seoul and China
Working across Seoul (South Korea) and China (China) involves a 1-hour gap. The good news: there is a 7-hour mutual window in standard business hours that lets both sides collaborate without anyone joining at an unreasonable hour.
💡 Best practice for cross-timezone meetings
✅10:00–11:00 in Seoul = 09:00–10:00 in China. Both sides are in standard business hours during this window.
✅11:00–12:00 in Seoul = 10:00–11:00 in China. Both sides are in standard business hours during this window.
✅12:00–13:00 in Seoul = 11:00–12:00 in China. Both sides are in standard business hours during this window.
DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.
Get the Extension — Free →Use the time slider above to find the exact equivalent time for any moment in Seoul. The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.
