JST to Calgary Time Converter
MDT is 15 hours behind JST. 9:00 AM JST = 6:00 PM MDT (previous day).
MDT is 15 hours behind JST at the moment. To convert JST to Calgary Time, subtract 15 hours from the JST time: 9:00 AM JST = 6:00 PM MDT (previous day).
JST (Japan Time) is used in Japan. Calgary Time (Calgary time) is used in Calgary, Canada.
JST to Calgary Time time conversion table
JST to Calgary Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| JST | Calgary Time | Day |
|---|---|---|
| 12:00 AM JST | 9:00 AM MDT | previous day |
| 1:00 AM JST | 10:00 AM MDT | previous day |
| 2:00 AM JST | 11:00 AM MDT | previous day |
| 3:00 AM JST | 12:00 PM MDT | previous day |
| 4:00 AM JST | 1:00 PM MDT | previous day |
| 5:00 AM JST | 2:00 PM MDT | previous day |
| 6:00 AM JST | 3:00 PM MDT | previous day |
| 7:00 AM JST | 4:00 PM MDT | previous day |
| 8:00 AM JST | 5:00 PM MDT | previous day |
| 9:00 AM JST | 6:00 PM MDT | previous day |
| 10:00 AM JST | 7:00 PM MDT | previous day |
| 11:00 AM JST | 8:00 PM MDT | previous day |
| 12:00 PM JST | 9:00 PM MDT | previous day |
| 1:00 PM JST | 10:00 PM MDT | previous day |
| 2:00 PM JST | 11:00 PM MDT | previous day |
| 3:00 PM JST | 12:00 AM MDT | night |
| 4:00 PM JST | 1:00 AM MDT | night |
| 5:00 PM JST | 2:00 AM MDT | night |
| 6:00 PM JST | 3:00 AM MDT | night |
| 7:00 PM JST | 4:00 AM MDT | night |
| 8:00 PM JST | 5:00 AM MDT | night |
| 9:00 PM JST | 6:00 AM MDT | — |
| 10:00 PM JST | 7:00 AM MDT | — |
| 11:00 PM JST | 8:00 AM MDT | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert JST to Calgary Time
Subtract 15 hours from the JST time to get Calgary Time.
Example: 9:00 AM JST = 6:00 PM MDT (previous day).
Across midnight: 1:00 AM JST = 10:00 AM MDT (previous day). The date changes, so always check the day as well as the hour.
Time difference between JST and Calgary Time
The time difference between JST and Calgary Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: Calgary Time is 16 hours behind of JST.
- 8 Mar 2026 – 31 Dec 2026: Calgary Time is 15 hours behind of JST.
JST and Calgary Time during daylight saving time
- JST does not observe daylight saving time; it stays on UTC+9 all year.
- Calgary Time does not observe daylight saving time; it stays on UTC−6 all year.
Best time for a meeting between JST and Calgary Time
JST and Calgary Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 4:00 PM MDT.
JST to Calgary Time FAQ
What is the time difference between JST and Calgary Time?
Right now MDT is 15 hours behind JST. The gap changes 2 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM JST in Calgary Time?
9:00 AM JST is 6:00 PM MDT (previous day).
What is 12 PM (noon) JST in Calgary Time?
12:00 PM JST is 9:00 PM MDT (previous day).
Is Calgary Time ahead of or behind JST?
MDT is 15 hours behind JST, so it is earlier in Calgary Time than in JST.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
Does Calgary Time change for daylight saving time?
No. Calgary Time stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between JST and Calgary Time?
JST and Calgary Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 4:00 PM MDT.
Related conversions
Convert Calgary Time to JST
Convert JST to other time zones
Convert other time zones to Calgary Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.