Time zone converter
UTC to IRST
Convert Coordinated Universal Time to Iran Time — Tehran — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in UTC, it's 12:30 PM in Tehran. Tehran is 3½ hours ahead of UTC. Use the converter above to turn any UTC time into IRST, or scan the hour-by-hour table below for the full day.
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Coordinated Universal Time ·
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Iran Time — Tehran ·
Convert a specific timein UTC → — in Tehran
UTC to IRST at a glance
9:00 AM UTC
12:30 PM
IRST · Tehran
12:00 PM UTC
3:30 PM
IRST · Tehran
5:00 PM UTC
8:30 PM
IRST · Tehran
Planning a meeting between UTC and Tehran
Planning a call between UTC and Tehran? The best overlap during a standard 9-to-5 workday runs 9:00 AM–1:30 PM UTC (12:30 PM–5:00 PM IRST). Aim for that window to reach both sides during business hours.
Hour-by-hour: UTC to Tehran
A full day mapped from UTC to IRST.
Frequently asked
Is Tehran ahead of or behind UTC?
Tehran is 3½ hours ahead of UTC.
What is 12:00 PM UTC in IRST?
12:00 PM in UTC is 3:30 PM in Tehran.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so UTC and IRST automatically reflect the correct daylight-saving offset for the current date.