MeanwhileUTC to IRST converter
Coordinated Universal Time (the world reference time) to Iran Time (Tehran).
IRST is 3 h 30 min ahead of UTC.
9:00 AM UTC = 12:30 PM IRST same day
Best time to meet
The best time to meet is between 9:00 AM and 2:00 PM UTC, which is 12:30 PM to 5:30 PM IRST. Both sides are then inside 9 AM to 5 PM.
UTC to IRST time table
For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.
| UTC | IRST |
|---|---|
| 12:00 AM UTC | 3:30 AM IRST |
| 1:00 AM UTC | 4:30 AM IRST |
| 2:00 AM UTC | 5:30 AM IRST |
| 3:00 AM UTC | 6:30 AM IRST |
| 4:00 AM UTC | 7:30 AM IRST |
| 5:00 AM UTC | 8:30 AM IRST |
| 6:00 AM UTC | 9:30 AM IRST |
| 7:00 AM UTC | 10:30 AM IRST |
| 8:00 AM UTC | 11:30 AM IRST |
| 9:00 AM UTC | 12:30 PM IRST |
| 10:00 AM UTC | 1:30 PM IRST |
| 11:00 AM UTC | 2:30 PM IRST |
| 12:00 PM UTC | 3:30 PM IRST |
| 1:00 PM UTC | 4:30 PM IRST |
| 2:00 PM UTC | 5:30 PM IRST |
| 3:00 PM UTC | 6:30 PM IRST |
| 4:00 PM UTC | 7:30 PM IRST |
| 5:00 PM UTC | 8:30 PM IRST |
| 6:00 PM UTC | 9:30 PM IRST |
| 7:00 PM UTC | 10:30 PM IRST |
| 8:00 PM UTC | 11:30 PM IRST |
| 9:00 PM UTC | 12:30 AM IRST next day |
| 10:00 PM UTC | 1:30 AM IRST next day |
| 11:00 PM UTC | 2:30 AM IRST next day |
Quick answers
- 9:00 AM UTC = 12:30 PM IRST
- 12:00 PM UTC = 3:30 PM IRST
- 3:00 PM UTC = 6:30 PM IRST
- 5:00 PM UTC = 8:30 PM IRST
- 9:00 AM IRST = 5:30 AM UTC
- 12:00 PM IRST = 8:30 AM UTC
- 5:00 PM IRST = 1:30 PM UTC
Does the gap change during the year?
No. IRST is 3 h 30 min ahead of UTC all year.
UTC does not change its clocks. IRST does not change its clocks.
About UTC and IRST
UTC here means Coordinated Universal Time, the clock in the world reference time. Right now it is UTC+0. It has no daylight saving.
IRST here means Iran Time, the clock in Tehran. Right now it is UTC+3:30. It has no daylight saving.
Every city on your wrist
Meanwhile puts these times in your Mac menu bar, on your iPhone home screen and on your Apple Watch. Type “3pm Tokyo” and every city answers. Free for 3 cities. Unlock every city on every device once for $4.99, shared with your family. No subscription.
Coming soonMore conversions
UTC to EST UTC to CST UTC to MST UTC to PST UTC to AKST UTC to HST UTC to AST UTC to NST UTC to BRT UTC to ART UTC to COT UTC to CLT UTC to GMT UTC to BST UTC to CET UTC to EET UTC to MSK UTC to TRT UTC to SAST UTC to WAT UTC to EAT UTC to GST UTC to AFT UTC to PKT UTC to IST UTC to NPT UTC to BDT UTC to ICT UTC to WIB UTC to SGT UTC to HKT UTC to PHT UTC to KST UTC to JST UTC to AWST UTC to ACST UTC to AEST UTC to NZST
Time in Tehran Time in Mashhad Time in Isfahan Time in Karaj Time in Tabriz