New York to SeoulTime Converter

New York to Seoul: the time difference

On 2026-10-05 at 9:00 AM in New York, it is 10:00 PM in Seoul (Monday, October 5, 2026). Seoul is 13 hours ahead of New York.

New York is a useful anchor for US East Coast business hours. Its clock changes do not line up with London’s, so recurring transatlantic calls can shift for a few weeks each year. Seoul and Tokyo currently share the same UTC offset. Calls with North America commonly cross midnight, so include the weekday when sharing a Seoul meeting time.

24-hour conversion table

Source date: 2026-10-05 in New York. Each row is a real instant; the destination date is shown explicitly. Repeated hours appear twice and nonexistent hours are labeled.

Does the time difference change during 2026?

Yes. The daily reference calculation finds 13 and 14-hour differences across the year. A repeating meeting tied to one city's clock can move on the other city's calendar.

Ranges sample each date at 12:00 UTC. A transition can occur partway through the first or last date. Use the converter for the precise instant. Calculated from this build’s Intl time-zone rules; future legislation may change them.

New York: The 2026 reference data includes UTC−05:00 and UTC−04:00. Select the actual meeting date: one fixed offset will not describe the whole year.

Seoul: No UTC offset change is found in the 2026 reference data. The offset is UTC+09:00.

Best time to call Seoul from New York

There is no full one-hour overlap between 9 AM and 6 PM in both cities on 2026-10-05. Try a shorter call, shift one participant’s hours with their agreement, or use an asynchronous update. Rotating the early or late slot can spread the inconvenience.

Customize working hours for New York and Seoul.

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