Reston to Seoul time converter

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

Reston EDT

Monday, October 19, 2026

Seoul KST

Monday, October 19, 2026

Reston
Virginia, United States
Mon, Oct 19
EDTUTC-4
Seoul
South Korea
Mon, Oct 19
KSTUTC+9+13h
Finding your time zone…
Shared working hours (9:00–18:00)

Reston to Seoul conversion table

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

RestonSeoul
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 Reston (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 Reston and Seoul switch clocks on different dates:

  • Oct 19, 2026 – Nov 1, 2026: +13h
  • Nov 1, 2026 – Mar 14, 2027: +14h
  • Mar 14, 2027 – Oct 19, 2027: +13h

Distance

Reston and Seoul are 11,149 km (6,928 miles) apart in a straight line.

More conversions

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Questions and answers

What is the time difference between Reston and Seoul?

Seoul is 13 hours ahead of Reston.

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

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

When is the best time to call Seoul from Reston?

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

Does the time difference between Reston 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.