The short answer

Changwon is 13 hours ahead of Eastern Standard Time.

Changwon
8:23:35am
KST · UTC+09:00 · Thu, Jun 25
Eastern Standard Time
7:23:35pm
EDT · UTC-04:00 · Wed, Jun 24
Read across to convert
Changwon
KST · UTC+09:00
8:23am ☀
Eastern Standard Time
EDT · UTC-04:00
7:23pm ☾
Click any row to pin that hour across both zones.
12amThu
11amWed ·−1d
WORK
1am
12pmWed ·−1d
WORK
2am
1pmWed ·−1d
WORK
3am
2pmWed ·−1d
WORK
4am
3pmWed ·−1d
WORK
5am
4pmWed ·−1d
WORK
6am
5pmWed ·−1d
7am
6pmWed ·−1d
NOW
8am
7pmWed ·−1d
9am
WORK
8pmWed ·−1d
10am
WORK
9pmWed ·−1d
11am
WORK
10pmWed ·−1d
12pm
WORK
11pmWed ·−1d
1pm
WORK
12amThu
2pm
WORK
1am
3pm
WORK
2am
4pm
WORK
3am
5pm
4am
6pm
5am
7pm
6am
8pm
7am
9pm
8am
10pm
9am
WORK
11pm
10am
WORK
daylightnightworking hoursoverlap
Best time to meet
Closest workable window
Just outside the working window — early on one side, late on the other.
Changwon
7am–8am
=
Eastern Standard Time
6pm–7pm
previous day
Popular conversions

Quick reference.

9amChangwon=8pmEastern Standard Time · prev day
12pmChangwon=11pmEastern Standard Time · prev day
3pmChangwon=2amEastern Standard Time
5pmChangwon=4amEastern Standard Time
9pmChangwon=8amEastern Standard Time
In context

What each side covers.

Changwon
KST · UTC+09:00
8:23am
Cities on this clock
Eastern Standard Time
EDT · UTC-04:00
7:23pm
Did you mean…? “EDT” is shared by several places. This page shows Eastern Standard Time (US & Canada) — or switch to Australian Eastern Standard Time.

Frequently asked

Quick answers about converting between Changwon and Eastern Standard Time. Can't find what you need? Email [email protected].

What is the time difference between Changwon and Eastern Standard Time?
Changwon is 13 hours ahead of Eastern Standard Time 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 Changwon, what time is it in Eastern Standard Time?
9am in Changwon is 8pm in Eastern Standard Time on the previous day. 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 Changwon and Eastern Standard Time?
There's no comfortable 9-to-5 overlap between Changwon and Eastern Standard Time — 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 — KST and EDT — 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.