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