Time Difference Between New York and Seoul
Seoul is 13h ahead of New York.
This is the standard-time difference as of 2026. If either city observes daylight saving time, the actual difference can shift by up to an hour for part of the year — the live clocks below always show the current real-time difference.
Working Hours Overlap
For each hour of New York's working day (9:00-18:00), here is the corresponding local time in Seoul. Rows highlighted green fall within standard working hours (9:00-18:00) in both cities.
| New York | Seoul | Both working hours? |
|---|---|---|
| 9 AM | 10 PM | No |
| 10 AM | 11 PM | No |
| 11 AM | 12 AM | No |
| 12 PM | 1 AM | No |
| 1 PM | 2 AM | No |
| 2 PM | 3 AM | No |
| 3 PM | 4 AM | No |
| 4 PM | 5 AM | No |
| 5 PM | 6 AM | No |
| 6 PM | 7 AM | No |
Best Time to Meet
New York and Seoul don't share a standard 9 AM-6 PM working-hours window. The least disruptive compromise is around 5 PM in New York, which falls at 6 AM in Seoul — expect one side to take an early or late call.
How the Difference Changes in 2026
Because the two cities change their clocks on different dates, the gap is not one number. Here is how Seoul stands relative to New York through 2026:
| Period | Seoul vs New York |
|---|---|
| Jan 1 – Mar 7 | 14h ahead |
| Mar 8 – Oct 31 | 13h ahead |
| Nov 1 – Dec 31 | 14h ahead |
New York changes its clocks on Mar 8 (clocks forward) and Nov 1 (clocks back); Seoul keeps the same clock all year. Dates use the UTC calendar; the switch takes effect early that morning local time.
New York
New York uses the America/New_York IANA time zone, currently at UTC-4. This zone observes daylight saving time.
Seoul
Seoul uses the Asia/Seoul IANA time zone, currently at UTC+9. This zone does not observe daylight saving time.