Offset
The time difference between Calgary and Tokyo is 15 hours.
Calgary (MDT) is behind Tokyo (JST).
MDT: UTC-6
JST: UTC+9
Calgary is currently observing daylight saving time; Tokyo is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Calgary and Tokyo don't overlap on the same weekday. Tokyo is 15 hours ahead of Calgary.
With some flexibility, there’s a workable window outside standard hours:
- 4 PM–8 PM in Calgary (7 AM–11 AM the next day in Tokyo) — suggest 6:00 PM Calgary (9:00 AM Tokyo).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Canada
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Victoria DayMon, May 18
- Canada DayWed, Jul 1
- Labour DayMon, Sep 7
- National Day for Truth and ReconciliationWed, Sep 30
- ThanksgivingMon, Oct 12
- Christmas DayFri, Dec 25
Japan
- New Year's DayThu, Jan 1
- Coming of Age DayMon, Jan 12
- Foundation DayWed, Feb 11
- The Emperor's BirthdayMon, Feb 23
- Vernal Equinox DayFri, Mar 20
- Shōwa DayWed, Apr 29
- Constitution Memorial DayWed, May 6
- Greenery DayMon, May 4
- Children's DayTue, May 5
- Marine DayMon, Jul 20
- Mountain DayTue, Aug 11
- Respect for the Aged DayMon, Sep 21
- Autumnal Equinox DayWed, Sep 23
- Sports DayMon, Oct 12
- Culture DayTue, Nov 3
- Labour Thanksgiving DayMon, Nov 23
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Calgary | Tokyo | Day |
|---|---|---|
| 12:00 am | 3:00 pm | Same day |
| 1:00 am | 4:00 pm | Same day |
| 2:00 am | 5:00 pm | Same day |
| 3:00 am | 6:00 pm | Same day |
| 4:00 am | 7:00 pm | Same day |
| 5:00 am | 8:00 pm | Same day |
| 6:00 am | 9:00 pm | Same day |
| 7:00 am | 10:00 pm | Same day |
| 8:00 am | 11:00 pm | Same day |
| 9:00 am | 12:00 am | +1 day |
| 10:00 am | 1:00 am | +1 day |
| 11:00 am | 2:00 am | +1 day |
| 12:00 pm | 3:00 am | +1 day |
| 1:00 pm | 4:00 am | +1 day |
| 2:00 pm | 5:00 am | +1 day |
| 3:00 pm | 6:00 am | +1 day |
| 4:00 pm | 7:00 am | +1 day |
| 5:00 pm | 8:00 am | +1 day |
| 6:00 pm | 9:00 am | +1 day |
| 7:00 pm | 10:00 am | +1 day |
| 8:00 pm | 11:00 am | +1 day |
| 9:00 pm | 12:00 pm | +1 day |
| 10:00 pm | 1:00 pm | +1 day |
| 11:00 pm | 2:00 pm | +1 day |
Daylight saving time
Calgary observes daylight saving time; Tokyo does not. The offset between the two zones changes when Calgary transitions: on Sunday, November 1, 2026, clocks fall back from MDT to MST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:24 AM
- Sunset
- 9:48 PM
- Day length
- 16h 24m
- Sunrise
- 4:26 AM
- Sunset
- 6:56 PM
- Day length
- 14h 30m
Daylight overlap: 8h 22m — 1:26 PM–9:48 PM in Calgary (4:26 AM–12:48 PM in Tokyo). Both locations are in daylight during this window.
Cities in these zones
Other cities in Mountain Time
Other cities in Japan Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Mountain Time
- YYC
- YEG
Airports in Japan Standard Time
- HND
- NRT
- ITM
- KIX
- UKB
- NGO
- NKM
- CTS
- OKD
- FUK
Related conversions
Common conversions
- What is 9:00 am Calgary in Tokyo?
- 9:00 am Calgary is 12:00 am Tokyo, the next day.
- What is 12:00 pm Calgary in Tokyo?
- 12:00 pm Calgary is 3:00 am Tokyo, the next day.
- What is 12:30 pm Calgary in Tokyo?
- 12:30 pm Calgary is 3:30 am Tokyo, the next day.
- What is 2:00 pm Calgary in Tokyo?
- 2:00 pm Calgary is 5:00 am Tokyo, the next day.
- What is 5:00 pm Calgary in Tokyo?
- 5:00 pm Calgary is 8:00 am Tokyo, the next day.
- What is 11:30 pm Calgary in Tokyo?
- 11:30 pm Calgary is 2:30 pm Tokyo, the next day.