UTC to IRT Time Converter

Convert Coordinated Universal Time (UTC) to Iran Standard Time (IRT). Both time zones are shown live below; current offset between them is 3h 30m ahead.

UTC · Coordinated Universal Time
16:08:45
Tuesday, May 12, 2026
UTC · UTC+00:00
Tehran · Iran Standard Time
19:38:45
Tuesday, May 12, 2026
GMT+3:30 · UTC+03:30

Convert a specific time

From: UTC (UTC)
To: IRT (Tehran)
--:--

Daylight Saving status right now

UTC (Coordinated Universal Time)
Observes DST
No
IRT (Iran Standard Time)
Observes DST
No

When can UTC and IRT meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
UTC
IRT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in UTC (UTC). Each row shows the local working-hours state in that zone for the same moment in time.
5 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 09:00–13:00 UTC (12:30–16:30 IRT).

Hour-by-hour UTC to IRT conversion table

UTC time (UTC)IRT time (Tehran)Status
00:00 Tue03:30 TueOff-hours both sides
01:00 Tue04:30 TueOff-hours both sides
02:00 Tue05:30 TueOff-hours both sides
03:00 Tue06:30 TueOff-hours both sides
04:00 Tue07:30 TueOff-hours both sides
05:00 Tue08:30 TueOff-hours both sides
06:00 Tue09:30 TueIRT working
07:00 Tue10:30 TueIRT working
08:00 Tue11:30 TueIRT working
09:00 Tue12:30 TueBoth at work
10:00 Tue13:30 TueBoth at work
11:00 Tue14:30 TueBoth at work
12:00 Tue15:30 TueBoth at work
13:00 Tue16:30 TueBoth at work
14:00 Tue17:30 TueUTC working
15:00 Tue18:30 TueUTC working
16:00 Tue19:30 TueUTC working
17:00 Tue20:30 TueOff-hours both sides
18:00 Tue21:30 TueOff-hours both sides
19:00 Tue22:30 TueOff-hours both sides
20:00 Tue23:30 TueOff-hours both sides
21:00 Tue00:30 WedOff-hours both sides
22:00 Tue01:30 WedOff-hours both sides
23:00 Tue02:30 WedOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Coordinated Universal Time (UTC)
IANA identifier
UTC
Current UTC offset
UTC+00:00
Current abbreviation
UTC
Major cities in this zone
UTC
Iran Standard Time (IRT)
IANA identifier
Asia/Tehran
Current UTC offset
UTC+03:30
Current abbreviation
GMT+3:30
Major cities in this zone
TehranIsfahan

Sun today in UTC and Tehran

Tehran
Sunrise
05:03
Sunset
19:00
Solar noon
12:02
Daylight
13h 57m

Related converters

IRT to UTC (reverse)UTC to ESTUTC to PSTUTC to GMTUTC to CETUTC to ISTEST to IRTPST to IRTGMT to IRTCET to IRTIST to IRT
Looking for local time? See time in UTC or time in Tehran.

Frequently asked questions

What is the time difference between UTC and IRT right now?+
IRT (Iran Standard Time) is currently 3h 30m ahead UTC (Coordinated Universal Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does UTC or IRT observe daylight saving time?+
UTC: does not observe daylight saving time. IRT: does not observe daylight saving time.
When is the best time to schedule a meeting between UTC and IRT?+
The strongest overlap is 09:00–13:00 UTC (12:30–16:30 IRT), giving 5 hours when both sides are within standard 9am-5pm working hours.
What time is it in Tehran when it is 12:00 noon in UTC?+
When it is 12:00 Tue in UTC (UTC), it is 15:30 Tue in Tehran (IRT).
Which IANA time zone identifiers are used for UTC and IRT?+
UTC maps to "UTC" in the IANA database. IRT maps to "Asia/Tehran". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is UTC ahead of or behind Tehran?+
Whether UTC (UTC) is ahead of or behind Tehran (IRT) depends on the current UTC offsets. Right now IRT is 3h 30m ahead UTC. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for UTC and IRT?+
UTC is UTC+00:00 (UTC) and IRT is UTC+03:30 (GMT+3:30). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both UTC and IRT?+
Yes. There are 5 hours of overlap during standard 9am-5pm working hours, with the strongest window at 09:00–13:00 UTC.