World Timezones

IRST to CET Converter

Compare CET to IRST instead
Iran Standard Time8:06 amFri, Jun 5
Iran Standard TimeIRST
Middle East · UTC+3:30
8:06 amFri, Jun 5
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
Central European TimeCEST
Europe · UTC+2
6:36 amFri, Jun 5
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p

Offset

The time difference between Iran Standard Time and Central European Time is 1.5 hours.

1.5 hours

Iran Standard Time (IRST) is ahead of Central European Time (CEST).

IRST: UTC+3:30

CEST: UTC+2

Central European Time is currently observing daylight saving time; Iran Standard Time is not.

When to schedule

Business-hours overlap: 11 AM–5 PM in Iran Standard Time (9 AM–3 PM in Central European Time).

Both teams are in working hours during this window on weekdays.

Suggested time: 2:00 PM Iran Standard Time (12:30 PM Central European Time).

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.

France

  • New Year's DayThu, Jan 1
  • Easter MondayMon, Apr 6
  • Labour DayFri, May 1
  • Victory in Europe DayFri, May 8
  • Ascension DayThu, May 14
  • Whit MondayMon, May 25
  • Bastille DayTue, Jul 14
  • Assumption DaySat, Aug 15
  • All Saints' DaySun, Nov 1
  • Armistice DayWed, Nov 11
  • Christmas DayFri, Dec 25

About these zones

Iran Standard Time is also known as IRST. To call Iran, dial +98.

Central European Time is also known as CET, or CEST. To call France, dial +33.

Central European Time is approximately 2,600 miles northwest of Iran Standard Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

IRSTCETDay
12:00 am10:30 pm-1 day
1:00 am11:30 pm-1 day
2:00 am12:30 amSame day
3:00 am1:30 amSame day
4:00 am2:30 amSame day
5:00 am3:30 amSame day
6:00 am4:30 amSame day
7:00 am5:30 amSame day
8:00 am6:30 amSame day
9:00 am7:30 amSame day
10:00 am8:30 amSame day
11:00 am9:30 amSame day
12:00 pm10:30 amSame day
1:00 pm11:30 amSame day
2:00 pm12:30 pmSame day
3:00 pm1:30 pmSame day
4:00 pm2:30 pmSame day
5:00 pm3:30 pmSame day
6:00 pm4:30 pmSame day
7:00 pm5:30 pmSame day
8:00 pm6:30 pmSame day
9:00 pm7:30 pmSame day
10:00 pm8:30 pmSame day
11:00 pm9:30 pmSame day

Daylight saving time

Central European Time observes daylight saving time; Iran Standard Time does not. The offset between the two zones changes when Central European Time transitions: on Sunday, October 25, 2026, clocks fall back from CEST to CET.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Iran Standard Time
Sunrise
4:50 AM
Sunset
7:18 PM
Day length
14h 28m
Central European Time
Sunrise
5:50 AM
Sunset
9:50 PM
Day length
15h 59m

Daylight overlap: 11h 57m — 7:20 AM–7:18 PM in Iran Standard Time (5:50 AM–5:48 PM in Central European Time). Both locations are in daylight during this window.

Cities in these zones

Cities in Iran Standard Time

Cities in Central European Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Iran Standard Time

  • IKA
  • THR
  • MHD
  • IFN
  • PYK
  • TBZ

Airports in Central European Time

  • CDG
  • LBG
  • ORY
  • MRS
  • GNB
  • LYS
  • NCE

Related conversions

Common conversions

What is 9:00 am IRST in CET?
9:00 am IRST is 7:30 am CET.
What is 12:00 pm IRST in CET?
12:00 pm IRST is 10:30 am CET.
What is 12:30 pm IRST in CET?
12:30 pm IRST is 11:00 am CET.
What is 2:00 pm IRST in CET?
2:00 pm IRST is 12:30 pm CET.
What is 5:00 pm IRST in CET?
5:00 pm IRST is 3:30 pm CET.
What is 11:30 pm IRST in CET?
11:30 pm IRST is 10:00 pm CET.