Time Difference: New York to Seoul

Summary

New York (America/New_York) and Seoul (Asia/Seoul, KST UTC+9) are separated by 13 or 14 hours depending on US Daylight Saving Time. This tool shows both live clocks, calculates the current offset automatically, and lets you select any hour in New York to see the exact corresponding time in Seoul.

How it works

1. Your browser reads the current UTC time.
2. It converts UTC to New York local time (America/New_York, respecting DST).
3. It converts UTC to Seoul local time (Asia/Seoul, KST UTC+9, no DST).
4. The offset is computed as the difference between the two local hours.
5. When you pick a New York hour from the selector, the tool adds the offset to show the Seoul equivalent.

Use cases

• Schedule a call between a New York office and a Seoul partner.
• Check whether Seoul colleagues are still in the office when you start your New York morning.
• Plan webinars or live streams that span both cities.
• Quickly verify what time a New York deadline falls in South Korea.
• Calculate overnight overlap windows for US–Korea remote teams.

Frequently Asked Questions