Frederick to Seoul time converter

Seoul is 13 hours ahead of Frederick. When it is 9:00 AM in Frederick, it is 10:00 PM in Seoul.

Frederick EDT

Sunday, October 18, 2026

Seoul KST

Sunday, October 18, 2026

Frederick
Maryland, United States
Sun, Oct 18
EDTUTC-4
Seoul
South Korea
Sun, Oct 18
KSTUTC+9+13h
Finding your time zone…
Shared working hours (9:00–18:00)

Frederick to Seoul conversion table

Every hour of today in Frederick and the matching time in Seoul. Light rows are typical working hours (9:00–18:00).

FrederickSeoul
12:00 AM1:00 PM
1:00 AM2:00 PM
2:00 AM3:00 PM
3:00 AM4:00 PM
4:00 AM5:00 PM
5:00 AM6:00 PM
6:00 AM7:00 PM
7:00 AM8:00 PM
8:00 AM9:00 PM
9:00 AM10:00 PM
10:00 AM11:00 PM
11:00 AM12:00 AM+1 day
12:00 PM1:00 AM+1 day
1:00 PM2:00 AM+1 day
2:00 PM3:00 AM+1 day
3:00 PM4:00 AM+1 day
4:00 PM5:00 AM+1 day
5:00 PM6:00 AM+1 day
6:00 PM7:00 AM+1 day
7:00 PM8:00 AM+1 day
8:00 PM9:00 AM+1 day
9:00 PM10:00 AM+1 day
10:00 PM11:00 AM+1 day
11:00 PM12:00 PM+1 day

Best time to call or meet

Working hours don't overlap fully. The closest fit is 8:00 PM – 10:00 PM in Frederick (9:00 AM – 11:00 AM in Seoul): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because Frederick and Seoul switch clocks on different dates:

  • Oct 18, 2026 – Nov 1, 2026: +13h
  • Nov 1, 2026 – Mar 14, 2027: +14h
  • Mar 14, 2027 – Oct 18, 2027: +13h

Distance

Frederick and Seoul are 11,100 km (6,897 miles) apart in a straight line.

More conversions

Seoul to FrederickFrederick to New YorkFrederick to LondonFrederick to Los AngelesFrederick to ChicagoFrederick to TorontoFrederick to São PauloFrederick to ParisFrederick to BerlinFrederick to MoscowFrederick to DubaiFrederick to New DelhiFrederick to Bangkok
New York to SeoulLondon to SeoulLos Angeles to SeoulChicago to SeoulToronto to SeoulSão Paulo to SeoulParis to SeoulBerlin to SeoulMoscow to SeoulDubai to SeoulNew Delhi to SeoulBangkok to Seoul

Questions and answers

What is the time difference between Frederick and Seoul?

Seoul is 13 hours ahead of Frederick.

What time is it in Seoul when it is 9 AM in Frederick?

When it is 9:00 AM in Frederick, it is 10:00 PM in Seoul.

When is the best time to call Seoul from Frederick?

Working hours don't overlap fully. The closest fit is 8:00 PM – 10:00 PM in Frederick (9:00 AM – 11:00 AM in Seoul): working hours on one side, early or late on the other.

Does the time difference between Frederick and Seoul change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.