Tehran to Paris
-1h 30mTehran
IRSTSOURCEParis
CESTGreen rows indicate typical business hours (9 AM - 5 PM)
IRST and CEST on the World Map
The map below highlights the IRST (Iran Standard Time) and CEST (Central 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.
CET – Central European Time
UTC+01:00Central European Time (CET) is used across most of Western and Central Europe, 1 hour ahead of UTC.
- •CET covers more European countries than any other time zone.
- •Spain uses CET despite being geographically aligned with GMT/WET.
- •The Frankfurt Stock Exchange, Euronext (Amsterdam/Paris), and Borsa Italiana operate on CET.
- •Over 500 million people live in the CET time zone.
- •France moved to CET during the German occupation in WWII and never switched back.
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).
About Paris
WikipediaParis operates on Central European Time (CET/CEST), one hour ahead of London. As Europe's fashion and cultural capital, Paris time coordinates with major European markets.
The Louvre is the world's most visited museum, housing over 38,000 works including the Mona Lisa.
Everything You Need to Know About Tehran and Paris Time
Tehran runs on Iran Standard Time (IRST) at UTC+03:30. Paris runs on Central European Summer Time (CEST) at UTC+02:00, also currently on daylight saving time. That puts Tehran 1 hour 30 minutes behind Paris — a difference of -1h 30m at the current offsets.
In practice, when it is 9:00 AM in Tehran it is 7:30 AM in Paris. Midnight in Tehran is 10:30 PM in Paris.Paris observes daylight saving time while Tehran does not, so the gap narrows or widens by an hour part of the year.
Tehran to Paris time conversion table
| Tehran (IRST) | Paris (CEST) | Day |
|---|---|---|
| 12:00 AM | 10:30 PM | previous day |
| 6:00 AM | 4:30 AM | same day |
| 7:00 AM | 5:30 AM | same day |
| 8:00 AM | 6:30 AM | same day |
| 9:00 AM | 7:30 AM | same day |
| 12:00 PM | 10:30 AM | same day |
| 3:00 PM | 1:30 PM | same day |
| 5:00 PM | 3:30 PM | same day |
| 6:00 PM | 4:30 PM | same day |
| 9:00 PM | 7:30 PM | same day |
Why people convert Tehran to Paris time
- Scheduling a call from Tehran to Paris: a 10:00 AM start in Tehran lands at 8:30 AM in Paris, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Tehran and Paris are inside the 9-to-5 working day between 10:30 AM and 5:00 PM IRST time (9:00 AM–3:30 PM CEST). That is roughly 6 hours 30 minutes of usable overlap.
- Coordinating a Tehran-based team with Paris contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM IRST" is unambiguous; "3 PM" across a -1h 30m gap is not.
- Block 10:30 AM–5:00 PM IRST as the recurring meeting window if you work primarily from Tehran and need Paris colleagues present.
- Paris: Clocks fall back on Sun, Oct 25, 2026. 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 CET (Central European Time)
Central European Time (CET) is the standard time zone for most of Europe, covering over 30 countries from Spain to Poland, and from Norway to Italy. CET is 1 hour ahead of GMT and is used by the European Union's most populous nations. During summer, most CET countries switch to Central European Summer Time (CEST, UTC+02:00). Major European financial markets in Frankfurt, Paris, and Amsterdam operate on CET.
Best time to call between Tehran and Paris
Both Tehran and Paris sit inside the 9 AM – 5 PM working day between 10:30 AM–5:00 PM IRST, which is 9:00 AM–3:30 PM CEST. That gives roughly 6 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Tehran and Paris share 6 hours of working-hours overlap (10:30 AM–5:00 PM IRST), so scheduling a live meeting is straightforward.
Tehran is 1 hour 30 minutes behind Paris (IRST UTC+03:30 → CEST UTC+02:00). The shared working window is 10:30 AM–5:00 PM IRST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Tehran
Does not observe DST
Paris
☀ Currently in DST
Standard: UTC+01:00 · DST: UTC+02:00
Clocks fall back on Sun, Oct 25, 2026
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 Paris?
Tehran (IRST, UTC+03:30) is 1 hour 30 minutes behind Paris (CEST, UTC+02:00). The gap is currently -1h 30m.
How do I convert Tehran time to Paris time?
Add -1h 30m to Tehran local time. For example, 9:00 AM in Tehran is 7:30 AM in Paris.
What time is it in Paris right now?
Paris uses CEST at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h 30m offset from Tehran.
What is the best time to call Paris from Tehran?
Call between 10:30 AM and 5:00 PM IRST — that maps to 9:00 AM–3:30 PM CEST and keeps both parties inside the working day.
Which is behind, Tehran or Paris?
Tehran is 1 hour 30 minutes behind Paris. When it is 12:00 PM in Tehran it is 10:30 AM in Paris.
Do Tehran and Paris use different time zones?
Tehran (Iran) uses IRST at UTC+03:30, while Paris (France) uses CEST at UTC+02:00. The IANA identifiers are Asia/Tehran and Europe/Paris.
Does daylight saving time affect the Tehran–Paris difference?
Yes at the moment: Paris is on daylight saving time and Tehran is not, so the -1h 30m gap shifts by an hour when exactly one of them changes clocks.
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 Paris?
Not normally. The -1h 30m gap only pushes the date over the previous day.
What is the time difference between Tehran and Paris?
Paris is -1h 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 Paris in?
Paris operates on Central European Time (CET/CEST), one hour ahead of London. As Europe's fashion and cultural capital, Paris time coordinates with major European markets.
What are the business hours in Tehran?
Standard business hours in Tehran are 8:00 AM - 4:00 PM IRST.
What are the business hours in Paris?
Standard business hours in Paris are 9:00 AM - 6:00 PM CET.
What is the best time to schedule a call between Tehran and Paris?
The best overlap for a call is when both cities are in business hours. Tehran works 8:00 AM - 4:00 PM IRST and Paris works 9:00 AM - 6:00 PM CET (-1h 30m difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Tehran and Paris?
Tehran uses IRR (﷼) while Paris uses EUR (€). Check current exchange rates when planning travel or business between these cities.
How do Tehran and Paris compare in size?
Tehran has a population of approximately 9.4 million (metro: 16.8 million), while Paris has approximately 2.2 million (metro: 12.4 million).
What are the major landmarks in Tehran and Paris?
Tehran is known for Azadi Tower, Golestan Palace, Grand Bazaar. Paris is famous for Eiffel Tower, Louvre Museum, Notre-Dame.
Do Tehran and Paris have stock exchanges?
Yes. Tehran has the TSE (Tehran Stock Exchange) and Paris has the Euronext Paris. The -1h 30m time difference affects trading hour overlaps between these exchanges.
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 CET timezone?
Major cities in the CET timezone include Paris, Berlin, Rome, Madrid, Amsterdam, Brussels, Vienna, Warsaw.
What is the UTC offset for CET?
Central European Time (CET) is at UTC+01:00. During daylight saving time, it shifts to CEST.
What should I know about the CET timezone?
CET covers more European countries than any other time zone. Spain uses CET despite being geographically aligned with GMT/WET.
When is it midnight in Tehran, what time is it in Paris?
When it is 12:00 AM (midnight) in Tehran (IRST), it is -1h 30m later in Paris (CET).
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