Offset
The time difference between Istanbul and Casablanca is 2 hours.
Istanbul (TRT) is ahead of Casablanca (GMT+1).
TRT: UTC+3
GMT+1: UTC+1
Neither Istanbul nor Casablanca is currently observing daylight saving time.
When to schedule
Business-hours overlap: 11 AM–5 PM in Istanbul (9 AM–3 PM in Casablanca).
Both teams are in working hours during this window on weekdays.
Suggested time: 2:00 PM Istanbul (12:00 PM Casablanca).
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.
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
Morocco
- New Year's DayThu, Jan 1
- Proclamation of IndependenceSun, Jan 11
- Amazigh New YearWed, Jan 14
- Labour DayFri, May 1
- EnthronementThu, Jul 30
- Zikra Oued Ed-DahabFri, Aug 14
- Revolution of the King and the PeopleThu, Aug 20
- Youth DayFri, Aug 21
- Green MarchFri, Nov 6
- Independence DayWed, Nov 18
About these zones
Istanbul uses Turkey Time (TRT). To call Turkey, dial +90.
Casablanca uses GMT+01:00. To call Morocco, dial +212.
Casablanca is approximately 2,050 miles west of Istanbul.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Istanbul | Casablanca | Day |
|---|---|---|
| 12:00 am | 10:00 pm | -1 day |
| 1:00 am | 11:00 pm | -1 day |
| 2:00 am | 12:00 am | Same day |
| 3:00 am | 1:00 am | Same day |
| 4:00 am | 2:00 am | Same day |
| 5:00 am | 3:00 am | Same day |
| 6:00 am | 4:00 am | Same day |
| 7:00 am | 5:00 am | Same day |
| 8:00 am | 6:00 am | Same day |
| 9:00 am | 7:00 am | Same day |
| 10:00 am | 8:00 am | Same day |
| 11:00 am | 9:00 am | Same day |
| 12:00 pm | 10:00 am | Same day |
| 1:00 pm | 11:00 am | Same day |
| 2:00 pm | 12:00 pm | Same day |
| 3:00 pm | 1:00 pm | Same day |
| 4:00 pm | 2:00 pm | Same day |
| 5:00 pm | 3:00 pm | Same day |
| 6:00 pm | 4:00 pm | Same day |
| 7:00 pm | 5:00 pm | Same day |
| 8:00 pm | 6:00 pm | Same day |
| 9:00 pm | 7:00 pm | Same day |
| 10:00 pm | 8:00 pm | Same day |
| 11:00 pm | 9:00 pm | Same day |
Daylight saving time
Casablanca observes daylight saving time; Istanbul does not. The offset between the two zones changes when Casablanca transitions: on Sunday, February 7, 2027, clocks fall back from GMT+1 to GMT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:33 AM
- Sunset
- 8:36 PM
- Day length
- 15h 4m
- Sunrise
- 6:21 AM
- Sunset
- 8:41 PM
- Day length
- 14h 20m
Daylight overlap: 12h 16m — 8:21 AM–8:36 PM in Istanbul (6:21 AM–6:36 PM in Casablanca). Both locations are in daylight during this window.
Cities in these zones
Other cities in Turkey Time
Other cities in GMT+01:00
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Turkey Time
- IST
- SAW
- ESB
- YEI
- ADB
- GZT
- DIY
- ADA
- COV
- ASR
Airports in GMT+01:00
- CMN
- RBA
- RAK
Related conversions
Common conversions
- What is 9:00 am Istanbul in Casablanca?
- 9:00 am Istanbul is 7:00 am Casablanca.
- What is 12:00 pm Istanbul in Casablanca?
- 12:00 pm Istanbul is 10:00 am Casablanca.
- What is 12:30 pm Istanbul in Casablanca?
- 12:30 pm Istanbul is 10:30 am Casablanca.
- What is 2:00 pm Istanbul in Casablanca?
- 2:00 pm Istanbul is 12:00 pm Casablanca.
- What is 5:00 pm Istanbul in Casablanca?
- 5:00 pm Istanbul is 3:00 pm Casablanca.
- What is 11:30 pm Istanbul in Casablanca?
- 11:30 pm Istanbul is 9:30 pm Casablanca.