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