The short answer
3am in Mountain Time is 6pm in Seoul.
Mountain Time is 15 hours behind Seoul. That's already evening in Seoul, after the typical working day ends.
Mountain Time☾
3am
Seoul☀
6pm
Right now
6:34amMDT · UTC-06:00 · Mon, Jun 22
9:34pmKST · UTC+09:00 · Mon, Jun 22
Read across to convert
Mountain Time
MDT · UTC-06:00
Seoul
KST · UTC+09:00
Pinned3amMountain Time=6pmSeoul
12amMon
3pm
WORK1am
4pm
WORK2am
5pm
PINNED
3am
6pm
4am
7pm
5am
8pm
NOW
6am
9pm
7am
10pm
8am
11pm
9am
WORK12amTue ·+1d
10am
WORK1amTue ·+1d
11am
WORK2amTue ·+1d
12pm
WORK3amTue ·+1d
1pm
WORK4amTue ·+1d
2pm
WORK5amTue ·+1d
3pm
WORK6amTue ·+1d
4pm
WORK7amTue ·+1d
5pm
8amTue ·+1d
6pm
9amTue ·+1d
WORK7pm
10amTue ·+1d
WORK8pm
11amTue ·+1d
WORK9pm
12pmTue ·+1d
WORK10pm
1pmTue ·+1d
WORK11pm
2pmTue ·+1d
WORKdaylightnightworking hoursoverlap
Best time to meet=
Closest workable window
Just outside the working window — early on one side, late on the other.
Mountain Time
4pm–7pm
Seoul
7am–10am
next day
Popular conversions
Quick reference.
9amMountain Time=12amSeoul · next day
12pmMountain Time=3amSeoul · next day
3pmMountain Time=6amSeoul · next day
5pmMountain Time=8amSeoul · next day
9pmMountain Time=12pmSeoul · next day
In context
What each side covers.
Mountain Time
6:34amMDT · UTC-06:00
Cities on this clock
Related converters
Other popular pairs.
Pacific Time
5:34am
India Standard Time
6:04pm
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
8:34am
Central European Time
2:34pm
Eastern Time to Central Europe6 hours behind
India Standard Time
6:04pm
Eastern Standard Time
8:34am
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
1:34pm
India Standard Time
6:04pm
London to India4 hours 30 minutes behind
Pacific Standard Time
5:34am
Eastern Standard Time
8:34am
Pacific to Eastern Time3 hours behind
Central European Time
2:34pm
India Standard Time
6:04pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Mountain Time and Seoul. Can't find what you need? Email [email protected].
- What is the time difference between Mountain Time and Seoul?
- Mountain Time is 15 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 3am in Mountain Time, what time is it in Seoul?
- 3am in Mountain Time is 6pm in Seoul. That's already evening in Seoul, after the typical working day ends. Use the hour-by-hour table above to read any other time across.
- What's the best time for a call between Mountain Time and Seoul?
- There's no comfortable 9-to-5 overlap between Mountain 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 — MDT 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.