IRST to TRT
Convert Iran Time — Tehran to Turkey Time — Istanbul — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Tehran, it's 8:30 AM in Istanbul. Istanbul is 0½ hours behind Tehran. Use the converter above to turn any IRST time into TRT, or scan the hour-by-hour table below for the full day.
IRST to TRT at a glance
Planning a meeting between Tehran and Istanbul
Planning a call between Tehran and Istanbul? The best overlap during a standard 9-to-5 workday runs 9:30 AM–5:00 PM IRST (9:00 AM–4:30 PM TRT). Aim for that window to reach both sides during business hours.
Hour-by-hour: Tehran to Istanbul
A full day mapped from IRST to TRT.
Frequently asked
Is Istanbul ahead of or behind Tehran?
Istanbul is 0½ hours behind Tehran.
What is 12:00 PM IRST in TRT?
12:00 PM in Tehran is 11:30 AM in Istanbul.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so IRST and TRT automatically reflect the correct daylight-saving offset for the current date.