Convert Mountain Daylight Time to Japan Standard Time
Instantly convert Mountain Daylight Time (MDT) to Japan Standard Time (JST) with our free online calculator.
Mountain Daylight Time
11:20:55 PM
Tue, Jun 23 (MDT)
Japan Standard Time
02:20:55 PM
Wed, Jun 24 (JST)
Convert a Specific Time
24-Hour Comparison
| MDT | JST |
|---|---|
| 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(+1d) |
| 10:00 AM | 1:00 AM(+1d) |
| 11:00 AM | 2:00 AM(+1d) |
| 12:00 PM | 3:00 AM(+1d) |
| 1:00 PM | 4:00 AM(+1d) |
| 2:00 PM | 5:00 AM(+1d) |
| 3:00 PM | 6:00 AM(+1d) |
| 4:00 PM | 7:00 AM(+1d) |
| 5:00 PM | 8:00 AM(+1d) |
| 6:00 PM | 9:00 AM(+1d) |
| 7:00 PM | 10:00 AM(+1d) |
| 8:00 PM | 11:00 AM(+1d) |
| 9:00 PM | 12:00 PM(+1d) |
| 10:00 PM | 1:00 PM(+1d) |
| 11:00 PM | 2:00 PM(+1d) |
How to Convert Mountain Daylight Time to Japan Standard Time
Formula
To convert Mountain Daylight Time (MDT) to Japan Standard Time (JST): Convert MDT to JST
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.
About Japan Standard Time (JST)
Japan Standard Time (JST, IANA: Asia/Tokyo) is the civil time of Japan, set at UTC+9:00 year-round (no DST). Japan observed Daylight Saving Time only briefly during American Occupation (1948-1951) and discontinued it after the Treaty of San Francisco. JST is also called Nippon Hyōjunji (日本標準時) and is officially maintained by the National Institute of Information and Communications Technology (NICT) — Japan operates a sophisticated atomic-clock-based timekeeping system at NICT Koganei facility with caesium beam frequency standards CSF-2 + Sr-87 optical lattice clock. JST is identical in offset to Korea Standard Time (KST), Yakutsk Time (Russian Far East), Western Indonesian Time WIT (eastern Indonesia), and Palau Time (PWT). JST serves Japan's approximately 125 million residents across 47 prefectures. Major JST cities: Tokyo (14M city, 37M metro — the world's largest metropolitan area by population), Yokohama (3.8M — Tokyo bay metro), Osaka (2.7M, Kansai region 19M metro), Nagoya (2.3M, Chukyo region 9.5M metro), Sapporo (1.9M — Hokkaido capital), Fukuoka (1.6M — Kyushu hub), Kobe (1.5M), Kawasaki (1.5M), Saitama (1.3M). Affects: TSE (Tokyo Stock Exchange) trading hours 09:00-15:00 JST, Tokyo Sumo Grand Tournaments, Shinkansen bullet-train scheduling, Tokyo Disney + USJ park operating hours.