The short answer
Eastern Daylight Time is 13 hours behind Seoul.
Eastern Daylight Time☾
9:04:49pm
EDT · UTC-04:00 · Thu, Sep 24
Seoul☀
10:04:49am
KST · UTC+09:00 · Fri, Sep 25
Read across to convert
Eastern Daylight Time
EDT · UTC-04:00
Seoul
KST · UTC+09:00
Click any row to pin that hour across both zones.
12amThu
1pm
WORK1am
2pm
WORK2am
3pm
WORK3am
4pm
WORK4am
5pm
5am
6pm
6am
7pm
7am
8pm
8am
9pm
9am
WORK10pm
10am
WORK11pm
11am
WORK12amFri ·+1d
12pm
WORK1amFri ·+1d
1pm
WORK2amFri ·+1d
2pm
WORK3amFri ·+1d
3pm
WORK4amFri ·+1d
4pm
WORK5amFri ·+1d
5pm
6amFri ·+1d
6pm
7amFri ·+1d
7pm
8amFri ·+1d
8pm
9amFri ·+1d
WORKNOW
9pm
10amFri ·+1d
WORK10pm
11amFri ·+1d
WORK11pm
12pmFri ·+1d
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Eastern Daylight Time
6pm–7pm
Seoul
7am–8am
next day
Popular conversions
Quick reference.
9amEastern Daylight Time=10pmSeoul
12pmEastern Daylight Time=1amSeoul · next day
3pmEastern Daylight Time=4amSeoul · next day
5pmEastern Daylight Time=6amSeoul · next day
9pmEastern Daylight Time=10amSeoul · next day
In context
What each side covers.
Eastern Daylight Time
9:04pmEDT · UTC-04:00
Cities on this clock
Did you mean…? “EDT” is shared by several places. This page shows Eastern Daylight Time (US & Canada) — or switch to Australian Eastern Standard Time.
Related converters
Other popular pairs.
Pacific Time
6:04pm
India Standard Time
6:34am
Pacific Time to India12 hours 30 minutes behind
Eastern Daylight Time
9:04pm
Central European Time
3:04am
Eastern Time to Central Europe6 hours behind
India Standard Time
6:34am
Eastern Daylight Time
9:04pm
India to Eastern Time9 hours 30 minutes ahead
British Summer Time
2:04am
India Standard Time
6:34am
London to India4 hours 30 minutes behind
Pacific Daylight Time
6:04pm
Eastern Daylight Time
9:04pm
Pacific to Eastern Time3 hours behind
Central European Time
3:04am
India Standard Time
6:34am
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Eastern Daylight Time and Seoul. Can't find what you need? Email [email protected].
- What is the time difference between Eastern Daylight Time and Seoul?
- Eastern Daylight Time is 13 hours behind Seoul right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
- When it's 9am in Eastern Daylight Time, what time is it in Seoul?
- 9am in Eastern Daylight Time is 10pm in Seoul. Use the hour-by-hour table above to read any other time across — find the row and read the matching cell in the other column.
- What's the best time for a call between Eastern Daylight Time and Seoul?
- There's no comfortable 9-to-5 overlap between Eastern Daylight Time and Seoul — they sit on opposite sides of the planet's working day. Plan for an early or late call on one side, or hand work off asynchronously.
- Does this account for daylight saving time?
- Yes. We track every clock change in both places, so the abbreviations you see — EDT and KST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
- Why is the date sometimes different on each side?
- When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.