What is the time difference between KST and MST?

KST is 16 hours behind MST. KST is UTC+9 and MST is UTC-7.

What is 9 AM KST in MST?

9 AM KST is 6 PM MST (previous day).

What is 12 PM KST in MST?

12 PM KST (noon) is 9 PM MST (previous day).

What are the best meeting times between KST and MST?

There is no standard business hours overlap between KST and MST.

KST to MST Time Converter

Korea Standard Time → Mountain Standard Time

KST

UTC+9

Korea Standard Time

offset

-16h

MST is 16h behind

MST

UTC-7

Mountain Standard Time

MST observes DST — offset shifts ±1h during transitions

Korea Standard Time (KST) is 16 hours behind Mountain Standard Time (MST). When it is noon in KST, it is 9 PM in MST. This offset may change during Daylight Saving Time transitions.

Meeting planner tool Reverse: MST to KST

Cities in KST

🇰🇷Seoul

Cities in MST

🇺🇸Phoenix 🇺🇸Denver 🇨🇦Calgary

All 24 Hours — KST to MST

Click any row to see the full detail page. Current hour in KST is highlighted.

Both business hoursPartial overlap

12 AM6 AM12 PM6 PM11 PM

Best Meeting Times — KST & MST

No standard business-hours overlap between KST and MST. Consider early morning or evening calls.

Challenging overlap

KST and MST are 16 hours apart with no shared business-hours window. Try scheduling at 8 AM in the earlier timezone or 6 PM in the later one.

8 AM→5 PM−1d 9 AM→6 PM−1d 10 AM→7 PM−1d 11 AM→8 PM−1d 12 PM→9 PM−1d 1 PM→10 PM−1d 2 PM→11 PM−1d 3 PM→12 AM 4 PM→1 AM 5 PM→2 AM

Related Time Zone Conversions

Frequently Asked Questions — KST to MST

Korea Standard Time (KST) is 16 hours behind Mountain Standard Time (MST). KST is UTC+9 and MST is UTC-7. This offset may shift by ±1 hour during Daylight Saving Time transitions.