MST to KST Time Converter
Convert Mountain Time to Korea Standard Time instantly.
Scroll the timeline to check any hour of the day.
Mountain Time
MST
2:25
Korea Standard Time
KST
5:25
MST is on daylight savings (MDT), while KST is on standard time (KST) right now.
Search any city, build a custom world clock, and plan across more time zones and options in the FlutterTime app. Free.
How the MST to KST time difference works
KST is 15 hours ahead of MST. Mountain Time (MST) is the US Mountain time zone. Korea Standard Time (KST) is the time zone of South Korea. For example, 9:00 AM MST is 12:00 AM KST. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
15 hours
Daylight saving
MST only
MST offset
UTC-7
KST offset
UTC+9
MST to KST conversion chart
| Mountain Time (MST) | Korea Standard Time (KST) |
|---|---|
| 12:00 AM | 3:00 PM |
| 1:00 AM | 4:00 PM |
| 2:00 AM | 5:00 PM |
| 3:00 AM | 6:00 PM |
| 4:00 AM | 7:00 PM |
| 5:00 AM | 8:00 PM |
| 6:00 AM | 9:00 PM |
| 7:00 AM | 10:00 PM |
| 8:00 AM | 11:00 PM |
| 9:00 AM | 12:00 AM +1 day |
| 10:00 AM | 1:00 AM +1 day |
| 11:00 AM | 2:00 AM +1 day |
| 12:00 PM | 3:00 AM +1 day |
| 1:00 PM | 4:00 AM +1 day |
| 2:00 PM | 5:00 AM +1 day |
| 3:00 PM | 6:00 AM +1 day |
| 4:00 PM | 7:00 AM +1 day |
| 5:00 PM | 8:00 AM +1 day |
| 6:00 PM | 9:00 AM +1 day |
| 7:00 PM | 10:00 AM +1 day |
| 8:00 PM | 11:00 AM +1 day |
| 9:00 PM | 12:00 PM +1 day |
| 10:00 PM | 1:00 PM +1 day |
| 11:00 PM | 2:00 PM +1 day |
Cities in each time zone
Mountain Time (MST)
DenverSalt Lake CityAlbuquerqueBoiseColorado Springs
Korea Standard Time (KST)
SeoulBusanIncheonDaeguDaejeon
MST to KST questions
Is KST ahead of or behind MST?
KST is 15 hours ahead of MST. So 9:00 AM MST is 12:00 AM KST, and 5:00 PM MST is 8:00 AM KST.
What time is it in KST when it is 12:00 PM MST?
When it is 12:00 PM (noon) MST in Mountain Time, it is 3:00 AM KST in Korea Standard Time.
How many hours difference is there between MST and KST?
There is a 15 hours difference. Korea Standard Time (KST) runs 15 hours ahead of Mountain Time (MST).
Do MST and KST observe daylight saving time?
Mountain Time observes daylight saving time but Korea Standard Time does not, so the difference between them changes by an hour twice a year.
What is the best time to schedule a meeting between MST and KST?
A standard 9-to-5 workday in Mountain Time and Korea Standard Time does not overlap, so pick the early morning in the later zone or the late evening in the earlier zone.
Which cities use MST and KST?
Mountain Time (MST) covers cities such as Denver, Salt Lake City, Albuquerque, Boise, Colorado Springs. Korea Standard Time (KST) covers cities such as Seoul, Busan, Incheon, Daegu, Daejeon.