Tehran to Casablanca
-2h 30mTehran
IRSTSOURCECasablanca
UTC+01:00Green rows indicate typical business hours (9 AM - 5 PM)
IRST and UTC+01:00 on the World Map
The map below highlights the IRST (Iran Standard Time) and UTC+01:00 (Western European Time) timezone regions across the globe.
IRST – Iran Standard Time
UTC+03:30Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.
- •IRST is one of only a few time zones with a 30-minute offset.
- •Iran observes daylight saving time, switching to IRDT (UTC+04:30).
- •Tehran has a metropolitan population of over 16 million.
WET – Western European Time
UTC+00:00Western European Time (WET) is the time zone for Portugal, Morocco, and the Canary Islands, same as UTC+00:00.
- •Portugal is the only mainland European country in the WET time zone.
- •The Canary Islands are on WET despite being part of Spain (which uses CET).
- •WET is identical to GMT and UTC+00:00.
About Tehran
WikipediaTehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.
Iran Standard Time (IRST) is one of few timezones with a 30-minute offset (UTC+3:30).
Comparing Time Zones: Tehran and Casablanca
Tehran runs on Iran Standard Time (IRST) at UTC+03:30. Casablanca runs on Western European Time (UTC+01:00) at UTC+01:00. That puts Tehran 2 hours 30 minutes behind Casablanca — a difference of -2h 30m at the current offsets.
In practice, when it is 9:00 AM in Tehran it is 6:30 AM in Casablanca. Midnight in Tehran is 9:30 PM in Casablanca. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Tehran to Casablanca time conversion table
| Tehran (IRST) | Casablanca (UTC+01:00) | Day |
|---|---|---|
| 12:00 AM | 9:30 PM | previous day |
| 6:00 AM | 3:30 AM | same day |
| 7:00 AM | 4:30 AM | same day |
| 8:00 AM | 5:30 AM | same day |
| 9:00 AM | 6:30 AM | same day |
| 12:00 PM | 9:30 AM | same day |
| 3:00 PM | 12:30 PM | same day |
| 5:00 PM | 2:30 PM | same day |
| 6:00 PM | 3:30 PM | same day |
| 9:00 PM | 6:30 PM | same day |
Why people convert Tehran to Casablanca time
- Scheduling a call from Tehran to Casablanca: a 10:00 AM start in Tehran lands at 7:30 AM in Casablanca, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Tehran and Casablanca are inside the 9-to-5 working day between 11:30 AM and 5:00 PM IRST time (9:00 AM–2:30 PM UTC+01:00). That is roughly 5 hours 30 minutes of usable overlap.
- Booking travel or deliveries: tracking Casablanca local time against Tehran keeps pickup windows and arrival estimates honest across the -2h 30m offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM IRST" is unambiguous; "3 PM" across a -2h 30m gap is not.
- Block 11:30 AM–5:00 PM IRST as the recurring meeting window if you work primarily from Tehran and need Casablanca colleagues present.
- Casablanca: Clocks fall back on Sun, Feb 7, 2027. Any meeting series spanning that date will shift by an hour in local time.
About IRST (Iran Standard Time)
Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.
About WET (Western European Time)
Western European Time (WET) is used in Portugal, the Canary Islands (Spain), Morocco, and several other locations. It is equivalent to GMT/UTC. During summer, Portugal and the Canary Islands switch to WEST (Western European Summer Time, UTC+01:00).
Best time to call between Tehran and Casablanca
Both Tehran and Casablanca sit inside the 9 AM – 5 PM working day between 11:30 AM–5:00 PM IRST, which is 9:00 AM–2:30 PM UTC+01:00. That gives roughly 5 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Tehran and Casablanca share 5 hours of working-hours overlap (11:30 AM–5:00 PM IRST), so scheduling a live meeting is straightforward.
Tehran is 2 hours 30 minutes behind Casablanca (IRST UTC+03:30 → UTC+01:00 UTC+01:00). The shared working window is 11:30 AM–5:00 PM IRST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Tehran
Does not observe DST
Casablanca
❄ Currently in Standard Time
Standard: UTC+01:00 · DST: UTC+00:00
Clocks fall back on Sun, Feb 7, 2027
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Tehran and Casablanca?
Tehran (IRST, UTC+03:30) is 2 hours 30 minutes behind Casablanca (UTC+01:00, UTC+01:00). The gap is currently -2h 30m.
How do I convert Tehran time to Casablanca time?
Add -2h 30m to Tehran local time. For example, 9:00 AM in Tehran is 6:30 AM in Casablanca.
What time is it in Casablanca right now?
Casablanca uses UTC+01:00 at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h 30m offset from Tehran.
What is the best time to call Casablanca from Tehran?
Call between 11:30 AM and 5:00 PM IRST — that maps to 9:00 AM–2:30 PM UTC+01:00 and keeps both parties inside the working day.
Which is behind, Tehran or Casablanca?
Tehran is 2 hours 30 minutes behind Casablanca. When it is 12:00 PM in Tehran it is 9:30 AM in Casablanca.
Do Tehran and Casablanca use different time zones?
Tehran (Iran) uses IRST at UTC+03:30, while Casablanca (Morocco) uses UTC+01:00 at UTC+01:00. The IANA identifiers are Asia/Tehran and Africa/Casablanca.
Does daylight saving time affect the Tehran–Casablanca difference?
Neither zone observes daylight saving time, so the -2h 30m offset between Tehran and Casablanca is fixed all year.
Which other cities share Tehran's time zone?
IRST also covers Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
Which countries use IRST, Tehran's zone?
IRST is used in Iran.
Is there a day difference between Tehran and Casablanca?
Not normally. The -2h 30m gap only pushes the date over the previous day.
What is the time difference between Tehran and Casablanca?
Casablanca is -2h 30m from Tehran.
What timezone is Tehran in?
Tehran operates on Iran Standard Time (IRST), UTC+3:30. Iran's unique half-hour offset makes Tehran time distinctive for regional business coordination.
What timezone is Casablanca in?
Casablanca operates on its local timezone.
What are the business hours in Tehran?
Standard business hours in Tehran are 8:00 AM - 4:00 PM IRST.
Which countries use IRST (Iran Standard Time)?
IRST is used in Iran.
Does IRST observe daylight saving time?
Yes, IRST switches to IRDT during summer months.
What are some interesting facts about IRST?
IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).
Which cities are in the WET timezone?
Major cities in the WET timezone include Lisbon, Porto, Casablanca, Las Palmas, Funchal, Rabat.
What is the UTC offset for WET?
Western European Time (WET) is at UTC+00:00. During daylight saving time, it shifts to WEST.
What should I know about the WET timezone?
Portugal is the only mainland European country in the WET time zone. The Canary Islands are on WET despite being part of Spain (which uses CET).
When is it midnight in Tehran, what time is it in Casablanca?
When it is 12:00 AM (midnight) in Tehran (IRST), it is -2h 30m later in Casablanca (WET).
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