Live Synchronized Time Difference
SeoultoNew YorkTime Difference
🇰🇷
Seoul
South Korea (GMT+9)00:10:22UTC+9:00
🇺🇸
New York
United States (EDT)11:10:22UTC-4:00
Direct Distance11,053 km (6,868 miles)
Estimated Flight Time~13.5 hours
Business Overlap0 overlapping hours (9am–5pm)
Feasible Shoulder Hours Window
Recommended calling window between Seoul and New York
Off-Peak Calling Window
Seoul Time
7:00 AM – 9:00 PM
New York Time
6:00 PM – 8:00 AM
There are no overlapping 9-to-5 working hours between Seoul and New York. The optimal compromise window falls during morning/evening shoulder periods (7:00 AM – 9:00 PM) when participants in both locations are awake.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between Seoul and New York.
Work (9am-5pm)ShoulderSleep / Off
| Seoul Time (South Korea) | New York Time (United States) | Status & Recommendation |
|---|---|---|
| 00:00AM | 11:00AM-1 day | ⚪ Outside Work Hours |
| 01:00AM | 12:00PM-1 day | ⚪ Outside Work Hours |
| 02:00AM | 13:00PM-1 day | ⚪ Outside Work Hours |
| 03:00AM | 14:00PM-1 day | ⚪ Outside Work Hours |
| 04:00AM | 15:00PM-1 day | ⚪ Outside Work Hours |
| 05:00AM | 16:00PM-1 day | ⚪ Outside Work Hours |
| 06:00AM | 17:00PM-1 day | ⚪ Outside Work Hours |
| 07:00AM | 18:00PM-1 day | ⚪ Outside Work Hours |
| 08:00AM | 19:00PM-1 day | ⚪ Outside Work Hours |
| 09:00AM | 20:00PM-1 day | 🟡 Feasible (Shoulder Hour) |
| 10:00AM | 21:00PM-1 day | ⚪ Outside Work Hours |
| 11:00AM | 22:00PM-1 day | ⚪ Outside Work Hours |
| 12:00PM | 23:00PM-1 day | ⚪ Outside Work Hours |
| 13:00PM | 00:00AM | ⚪ Outside Work Hours |
| 14:00PM | 01:00AM | ⚪ Outside Work Hours |
| 15:00PM | 02:00AM | ⚪ Outside Work Hours |
| 16:00PM | 03:00AM | ⚪ Outside Work Hours |
| 17:00PM | 04:00AM | ⚪ Outside Work Hours |
| 18:00PM | 05:00AM | ⚪ Outside Work Hours |
| 19:00PM | 06:00AM | ⚪ Outside Work Hours |
| 20:00PM | 07:00AM | ⚪ Outside Work Hours |
| 21:00PM | 08:00AM | ⚪ Outside Work Hours |
| 22:00PM | 09:00AM | ⚪ Outside Work Hours |
| 23:00PM | 10:00AM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between Seoul and New York?
New York is 13 hours behind Seoul.
What is the best time to schedule a cross-border meeting between Seoul and New York?
Because of the wide timezone separation, a compromise meeting window during early morning in one location and evening in the other is recommended.
Does daylight saving time (DST) affect the time difference between Seoul and New York?
Yes. If either South Korea or United States observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.