US Mountain Time to Korea Standard Time
Convert times between US Mountain Time (MST, UTC-7:00) and Korea Standard Time (KST, UTC+9:00). Korea Standard Time is 16 hours ahead of US Mountain Time in standard time. During daylight saving time this difference changes to 15 hours.
UTC-7:00 / -6:00→UTC+9:00
Live timezone converterUTC Offset Reference
| Timezone | Abbreviation | Standard offset | DST offset | Country |
|---|---|---|---|---|
| US Mountain Time | MST / MDT | UTC-7:00 | UTC-6:00 | United States |
| Korea Standard Time | KST | UTC+9:00 | — | South Korea |
* DST offset applies during summer months. Exact transition dates vary by year.
Standard Time Conversion (MST → KST)
| US Mountain Time | Korea Standard Time |
|---|---|
| 12:00 AM MST | 4:00 PM KST |
| 6:00 AM MST | 10:00 PM KST |
| 9:00 AM MST | 1:00 AM (next day) KST |
| 12:00 PM MST | 4:00 AM (next day) KST |
| 3:00 PM MST | 7:00 AM (next day) KST |
| 6:00 PM MST | 10:00 AM (next day) KST |
| 9:00 PM MST | 1:00 PM (next day) KST |
Summer (DST) Conversion (MDT → KST)
| US Mountain Time (summer) | Korea Standard Time (summer) |
|---|---|
| 12:00 AM MDT | 3:00 PM KST |
| 6:00 AM MDT | 9:00 PM KST |
| 9:00 AM MDT | 12:00 AM (next day) KST |
| 12:00 PM MDT | 3:00 AM (next day) KST |
| 3:00 PM MDT | 6:00 AM (next day) KST |
| 6:00 PM MDT | 9:00 AM (next day) KST |
| 9:00 PM MDT | 12:00 PM (next day) KST |
Daylight Saving Time (DST) Notes
- US Mountain Time observes DST. Clocks advance 1 hour to MDT (UTC-6:00) roughly from month 3 to 11.
- The offset difference shifts between 16h (standard) and 15h (DST season). Always verify the current offset using the live converter below.
Frequently Asked Questions
How do I convert MST to KST?
Add 16 hours to the MST time to get KST. For example, 9:00 AM MST = 1:00 AM KST.
What is the current UTC offset for US Mountain Time?
US Mountain Time is UTC-7:00 during standard time (MST) and UTC-6:00 during summer daylight saving time (MDT).
Is Korea Standard Time ahead or behind US Mountain Time?
Korea Standard Time is 16 hours ahead of US Mountain Time in standard time.
When is a good time to schedule a meeting between MST and KST?
Due to the 16-hour difference, business-hours overlap may be limited. Use the live timezone converter to find a mutually convenient time.
Related Timezone Conversions
US Mountain Time → US Eastern TimeMST / ESTUS Mountain Time → US Central TimeMST / CSTUS Mountain Time → US Pacific TimeMST / PSTUS Mountain Time → US Alaska TimeMST / AKSTUS Mountain Time → Hawaii TimeMST / HSTUS Mountain Time → Canada Atlantic TimeMST / ASTUS Mountain Time → China Standard TimeMST / CSTUS Mountain Time → Hong Kong TimeMST / HKT
Need the exact current time?
Use the live ToolsHub timezone converter to see current times, DST status, and schedule across time zones.