CEST to IRST Time Converter
Use this CEST to IRST time converter to compare Central Europe and Iran time instantly. IRST is 1 hour and 30 minutes ahead of CEST, so 9:00 AM CEST becomes 10:30 AM IRST and 5:00 PM CEST becomes 6:30 PM IRST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
CEST to IRST Quick Facts
Use this CEST to IRST converter to compare Central Europe and Iran time, check the 1 hour and 30 minutes gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM CEST / 10:30 AM IRST.
How to Convert CEST to IRST
Converting between Central European Summer Time and Iran Standard Time means accounting for a 1 hours and 30 minutes gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Central European Summer Time (UTC +2) that you want to convert. Hit "Now" to load the current CEST time instantly, or use "+1h" to step forward and compare.
The equivalent Iran Standard Time (UTC +3:30) time appears immediately. Since IRST is 1 hours and 30 minutes ahead of CEST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the IRST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
Why Choose Our CEST to IRST Converter
When someone in Central Europe suggests 9:00 AM CEST, that's 10:30 AM IRST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night CEST times can land on a different date in IRST because of the 1 hours and 30 minutes offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
The half-hour offset between CEST (UTC +2) and IRST (UTC +3:30) already makes mental math tricky — add Daylight Saving Time and the gap can shift further. This converter uses live UTC offsets, so you're always accurate.
Product launches, sports matches, and webinars are often announced in CEST. Convert the event time to IRST so you know exactly when to tune in — with a 1 hours and 30 minutes difference, a morning event in Central Europe falls during work hours in Iran.
CEST to IRST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Central European Summer Time to Iran Standard Time full day schedule
| Central European Summer Time | Iran Standard Time |
|---|---|
| 12:00 AM |
1:30 AM
|
| 1:00 AM |
2:30 AM
|
| 2:00 AM |
3:30 AM
|
| 3:00 AM |
4:30 AM
|
| 4:00 AM |
5:30 AM
|
| 5:00 AM |
6:30 AM
|
| 6:00 AM |
7:30 AM
|
| 7:00 AM |
8:30 AM
|
| 8:00 AM |
9:30 AM
|
| 9:00 AM |
10:30 AM
|
| 10:00 AM |
11:30 AM
|
| 11:00 AM |
12:30 PM
|
| 12:00 PM |
1:30 PM
|
| 1:00 PM |
2:30 PM
|
| 2:00 PM |
3:30 PM
|
| 3:00 PM |
4:30 PM
|
| 4:00 PM |
5:30 PM
|
| 5:00 PM |
6:30 PM
|
| 6:00 PM |
7:30 PM
|
| 7:00 PM |
8:30 PM
|
| 8:00 PM |
9:30 PM
|
| 9:00 PM |
10:30 PM
|
| 10:00 PM |
11:30 PM
|
| 11:00 PM |
12:30 AM
(next day)
|
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