Time zone converter
IRST to UTC
Convert Iran Time — Tehran to Coordinated Universal Time — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Tehran, it's 5:30 AM in UTC. UTC is 3½ hours behind Tehran. Use the converter above to turn any IRST time into UTC, or scan the hour-by-hour table below for the full day.
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Iran Time — Tehran ·
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Coordinated Universal Time ·
Convert a specific timein Tehran → — in UTC
IRST to UTC at a glance
9:00 AM IRST
5:30 AM
UTC · UTC
12:00 PM IRST
8:30 AM
UTC · UTC
5:00 PM IRST
1:30 PM
UTC · UTC
Planning a meeting between Tehran and UTC
Planning a call between Tehran and UTC? The best overlap during a standard 9-to-5 workday runs 12:30 PM–5:00 PM IRST (9:00 AM–1:30 PM UTC). Aim for that window to reach both sides during business hours.
Hour-by-hour: Tehran to UTC
A full day mapped from IRST to UTC.
Frequently asked
Is UTC ahead of or behind Tehran?
UTC is 3½ hours behind Tehran.
What is 12:00 PM IRST in UTC?
12:00 PM in Tehran is 8:30 AM in UTC.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so IRST and UTC automatically reflect the correct daylight-saving offset for the current date.