IRST to CEST Converter
Quick answers
Selected conversion
3:30 pm15:30 IRST (UTC+3:30), Oct 5, 2026 = 2:00 pm14:00 CEST (UTC+2), Oct 5, 2026
IRST is 1 hour and 30 minutes ahead of CEST.
IRST and CEST examples
These examples always use IRST (UTC+3:30) and CEST (UTC+2). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
IRST is 1 hour and 30 minutes ahead of CEST.
How the time difference changes
For most of the year, IRST is 1 hour and 30 minutes ahead of CEST. At other times of the year, IRST is 2 hours and 30 minutes ahead of CET.
For most of the year, working hours of 9:00 am to 5:00 pm in IRST correspond to 7:30 am to 3:30 pm in CEST. At other times of the year, working hours of 9:00 am to 5:00 pm in IRST correspond to 6:30 am to 2:30 pm in CET.For most of the year, working hours of 09:00 to 17:00 in IRST correspond to 07:30 to 15:30 in CEST. At other times of the year, working hours of 09:00 to 17:00 in IRST correspond to 06:30 to 14:30 in CET.
Compare IRST time with CEST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Iran Standard Time is 1 hour and 30 minutes ahead of Central European Summer Time.
3:30 pm15:30 in IRST is 2:00 pm14:00 in CEST
IRST to CEST call time
Best time for a conference call or a meeting is between 10:30am-5pm10:30-17:00 in IRST which corresponds to 9am-3:30pm09:00-15:30 in CEST
3:30 pm15:30 Iran Standard Time (IRST). Offset UTC +3:30 hours
2:00 pm14:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
3:30 pm15:30 IRST / 2:00 pm14:00 CEST
| IRST | CEST |
|---|---|
| 12:00am | 10:30pm |
| 1:00am | 11:30pm |
| 2:00am | 12:30am |
| 3:00am | 1:30am |
| 4:00am | 2:30am |
| 5:00am | 3:30am |
| 6:00am | 4:30am |
| 7:00am | 5:30am |
| 8:00am | 6:30am |
| 9:00am | 7:30am |
| 10:00am | 8:30am |
| 11:00am | 9:30am |
| 12:00pm | 10:30am |
| 1:00pm | 11:30am |
| 2:00pm | 12:30pm |
| 3:00pm | 1:30pm |
| 4:00pm | 2:30pm |
| 5:00pm | 3:30pm |
| 6:00pm | 4:30pm |
| 7:00pm | 5:30pm |
| 8:00pm | 6:30pm |
| 9:00pm | 7:30pm |
| 10:00pm | 8:30pm |
| 11:00pm | 9:30pm |
| 00:00 | 22:30 |
| 01:00 | 23:30 |
| 02:00 | 00:30 |
| 03:00 | 01:30 |
| 04:00 | 02:30 |
| 05:00 | 03:30 |
| 06:00 | 04:30 |
| 07:00 | 05:30 |
| 08:00 | 06:30 |
| 09:00 | 07:30 |
| 10:00 | 08:30 |
| 11:00 | 09:30 |
| 12:00 | 10:30 |
| 13:00 | 11:30 |
| 14:00 | 12:30 |
| 15:00 | 13:30 |
| 16:00 | 14:30 |
| 17:00 | 15:30 |
| 18:00 | 16:30 |
| 19:00 | 17:30 |
| 20:00 | 18:30 |
| 21:00 | 19:30 |
| 22:00 | 20:30 |
| 23:00 | 21:30 |
Iran Standard Time
Offset: IRST is 3 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries using this time zone: Iran
Principal Cities: The largest city in the IRST time zone is Tehran in Iran, with about 7.153 million people. Other major cities in this time zone include Mashhad, Isfahan, Karaj, Tabriz.
Daylight Saving: Clocks in Iran Standard Time (IRST) do not change for daylight saving time, so IRST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
IRST representations, usage and related time zones
- +0330 - basic
- +03:30 - extended
- +0330 - sign character (+) followed by a four digit time providing hours (03) and minutes (30) of the offset. Indicates an offset of three hours and thirty minutes to the east of the zero meridian.
Central European Summer Time
Offset: CEST is 2 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Vatican City
Principal Cities: The largest city in the CEST time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Rome, Paris, Hamburg.
German: MESZ - Mitteleuropäische Sommerzeit
Daylight Saving: Central European Summer Time (CEST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Central European Time (CET).
Start: Central European Summer Time (CEST) started on Sunday, March 29, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am03:00. Daylight saving starts annually on the last Sunday of March.
End: Central European Summer Time (CEST) ends on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
CEST representations, usage and related time zones
- +02 - basic short
- +0200 - basic
- +02:00 - extended
- +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the east of the zero meridian.
- Bravo - Military abbreviation for CEST
- B - short form of 'Bravo'
- Africa/Ceuta
- Arctic/Longyearbyen
- Atlantic/Jan_Mayen
- CET
- Europe/Amsterdam
- Europe/Andorra
- Europe/Belgrade
- Europe/Berlin
- Europe/Bratislava
- Europe/Brussels
- Europe/Budapest
- Europe/Busingen
- Europe/Copenhagen
- Europe/Gibraltar
- Europe/Ljubljana
- Europe/Luxembourg
- Europe/Madrid
- Europe/Malta
- Europe/Monaco
- Europe/Oslo
- Europe/Paris
- Europe/Podgorica
- Europe/Prague
- Europe/Rome
- Europe/San_Marino
- Europe/Sarajevo
- Europe/Skopje
- Europe/Stockholm
- Europe/Tirane
- Europe/Vaduz
- Europe/Vatican
- Europe/Vienna
- Europe/Warsaw
- Europe/Zagreb
- Europe/Zurich
- MET
- Poland
- CEST - Central European Summer Time
- EET - Eastern European Time
- MESZ - Mitteleuropäische Sommerzeit
- B - Bravo Time Zone
- CAT - Central Africa Time
- IST - Israel Standard Time
- SAST - South Africa Standard Time
- WAST - West Africa Summer Time