IRST to GMT
Convert Iran Time — Tehran to Ireland Time — Dublin — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Tehran, it's 6:30 AM in Dublin. Dublin is 2½ hours behind Tehran. Use the converter above to turn any IRST time into GMT, or scan the hour-by-hour table below for the full day.
IRST to GMT at a glance
Planning a meeting between Tehran and Dublin
Planning a call between Tehran and Dublin? The best overlap during a standard 9-to-5 workday runs 11:30 AM–5:00 PM IRST (9:00 AM–2:30 PM GMT). Aim for that window to reach both sides during business hours.
Hour-by-hour: Tehran to Dublin
A full day mapped from IRST to GMT.
Frequently asked
Is Dublin ahead of or behind Tehran?
Dublin is 2½ hours behind Tehran.
What is 12:00 PM IRST in GMT?
12:00 PM in Tehran is 9:30 AM in Dublin.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so IRST and GMT automatically reflect the correct daylight-saving offset for the current date.