Offset
The time difference between Calgary and Istanbul is 9 hours.
Calgary (MDT) is behind Istanbul (TRT).
MDT: UTC-6
TRT: UTC+3
Calgary is currently observing daylight saving time; Istanbul is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Calgary and Istanbul don't overlap on the same weekday. Istanbul is 9 hours ahead of Calgary.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–11 AM in Calgary (4 PM–8 PM in Istanbul) — suggest 9:00 AM Calgary (6:00 PM Istanbul).
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
Turkey
- New Year's DayThu, Jan 1
- National Independence & Children's DayThu, Apr 23
- Labour DayFri, May 1
- Atatürk Commemoration & Youth DayTue, May 19
- Democracy and National Unity DayWed, Jul 15
- Victory DaySun, Aug 30
- Republic DayThu, Oct 29
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Calgary | Istanbul | Day |
|---|---|---|
| 12:00 am | 9:00 am | Same day |
| 1:00 am | 10:00 am | Same day |
| 2:00 am | 11:00 am | Same day |
| 3:00 am | 12:00 pm | Same day |
| 4:00 am | 1:00 pm | Same day |
| 5:00 am | 2:00 pm | Same day |
| 6:00 am | 3:00 pm | Same day |
| 7:00 am | 4:00 pm | Same day |
| 8:00 am | 5:00 pm | Same day |
| 9:00 am | 6:00 pm | Same day |
| 10:00 am | 7:00 pm | Same day |
| 11:00 am | 8:00 pm | Same day |
| 12:00 pm | 9:00 pm | Same day |
| 1:00 pm | 10:00 pm | Same day |
| 2:00 pm | 11:00 pm | Same day |
| 3:00 pm | 12:00 am | +1 day |
| 4:00 pm | 1:00 am | +1 day |
| 5:00 pm | 2:00 am | +1 day |
| 6:00 pm | 3:00 am | +1 day |
| 7:00 pm | 4:00 am | +1 day |
| 8:00 pm | 5:00 am | +1 day |
| 9:00 pm | 6:00 am | +1 day |
| 10:00 pm | 7:00 am | +1 day |
| 11:00 pm | 8:00 am | +1 day |
Daylight saving time
Calgary observes daylight saving time; Istanbul 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
- 5:53 AM
- Sunset
- 9:34 PM
- Day length
- 15h 42m
- Sunrise
- 5:54 AM
- Sunset
- 8:29 PM
- Day length
- 14h 35m
Daylight overlap: 5h 36m — 5:53 AM–11:29 AM in Calgary (2:53 PM–8:29 PM in Istanbul). Both locations are in daylight during this window.
Cities in these zones
Other cities in Mountain Time
Other cities in Turkey Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Mountain Time
- YYC
- YEG
Airports in Turkey Time
- IST
- SAW
- ESB
- YEI
- ADB
- GZT
- DIY
- ADA
- COV
- ASR
Related conversions
Common conversions
- What is 9:00 am Calgary in Istanbul?
- 9:00 am Calgary is 6:00 pm Istanbul.
- What is 12:00 pm Calgary in Istanbul?
- 12:00 pm Calgary is 9:00 pm Istanbul.
- What is 12:30 pm Calgary in Istanbul?
- 12:30 pm Calgary is 9:30 pm Istanbul.
- What is 2:00 pm Calgary in Istanbul?
- 2:00 pm Calgary is 11:00 pm Istanbul.
- What is 5:00 pm Calgary in Istanbul?
- 5:00 pm Calgary is 2:00 am Istanbul, the next day.
- What is 11:30 pm Calgary in Istanbul?
- 11:30 pm Calgary is 8:30 am Istanbul, the next day.