Convert Korea Standard Time to Mountain Daylight Time
Instantly convert Korea Standard Time (KST) to Mountain Daylight Time (MDT) with our free online calculator.
Korea Standard Time
02:20:52 PM
Wed, Jun 24 (KST)
Mountain Daylight Time
11:20:52 PM
Tue, Jun 23 (MDT)
Convert a Specific Time
24-Hour Comparison
| KST | MDT |
|---|---|
| 12:00 AM | 9:00 AM(-1d) |
| 1:00 AM | 10:00 AM(-1d) |
| 2:00 AM | 11:00 AM(-1d) |
| 3:00 AM | 12:00 PM(-1d) |
| 4:00 AM | 1:00 PM(-1d) |
| 5:00 AM | 2:00 PM(-1d) |
| 6:00 AM | 3:00 PM(-1d) |
| 7:00 AM | 4:00 PM(-1d) |
| 8:00 AM | 5:00 PM(-1d) |
| 9:00 AM | 6:00 PM(-1d) |
| 10:00 AM | 7:00 PM(-1d) |
| 11:00 AM | 8:00 PM(-1d) |
| 12:00 PM | 9:00 PM(-1d) |
| 1:00 PM | 10:00 PM(-1d) |
| 2:00 PM | 11:00 PM(-1d) |
| 3:00 PM | 12:00 AM |
| 4:00 PM | 1:00 AM |
| 5:00 PM | 2:00 AM |
| 6:00 PM | 3:00 AM |
| 7:00 PM | 4:00 AM |
| 8:00 PM | 5:00 AM |
| 9:00 PM | 6:00 AM |
| 10:00 PM | 7:00 AM |
| 11:00 PM | 8:00 AM |
How to Convert Korea Standard Time to Mountain Daylight Time
Formula
To convert Korea Standard Time (KST) to Mountain Daylight Time (MDT): Convert KST to MDT
About Korea Standard Time (KST)
Korea Standard Time (KST, IANA: Asia/Seoul) is the civil time of both the Republic of Korea (South Korea) and the Democratic People's Republic of Korea (North Korea — since May 2018 when North Korea reverted to KST from its briefly used Pyongyang Time UTC+8:30 of 2015-2018), set at UTC+9:00 year-round (no DST). South Korea observed Daylight Saving Time briefly in 1948-1951 and again 1987-1988 during the Seoul Olympics (to facilitate evening TV broadcasts to North America), but discontinued it both times. KST is identical in offset to Japan Standard Time (JST), Yakutsk Time, Western Indonesian Time WIT (eastern Indonesia), and Palau Time (PWT) — creating a 'business-friendly' Northeast Asia zone of synchronized financial centers (Seoul-Tokyo). KST serves the Korean Peninsula's approximately 78 million residents (South Korea 52M + North Korea 26M). Major KST cities: Seoul (9.7M city, 25.7M metro — South Korean capital and the world's 5th-largest metro), Busan (3.3M — South Korea's 2nd-largest city + main port), Incheon (3M — Seoul Capital Area, location of Incheon International Airport ICN), Daegu (2.4M), Daejeon (1.5M), Pyongyang (3.2M — North Korean capital), Hamhung (770K — North Korea), Nampo (980K — North Korea). Affects: KRX (Korea Exchange) trading hours, K-pop industry music-release timing, Samsung + LG + Hyundai global headquarters operations.
About Mountain Daylight Time (MDT)
Mountain Daylight Time (MDT, IANA: America/Denver during DST window) is the summer-time variant of MST, set at UTC-6:00 — observed from the second Sunday in March to the first Sunday in November per the Energy Policy Act of 2005. MDT shares the same UTC offset as Central Standard Time (CST), which can cause cross-time-zone scheduling confusion during the DST transition windows in March and November. The Navajo Nation in northeastern Arizona does observe MDT (unlike the rest of Arizona), creating one of the rare US sub-state time-zone exceptions per the Navajo Nation Council's 1968 resolution. MDT applies in Colorado, Utah, Wyoming, Montana, Idaho east, New Mexico, parts of Texas, and Canadian Rocky Mountain provinces (Alberta, eastern BC). Used in coordination of: Denver International Airport flight operations, ski-area lift hours during shoulder-season DST window, Yellowstone National Park ranger schedules, US National Renewable Energy Lab operations, and FAA Albuquerque ARTCC ATC operations.