IRST to BRT converter

Iran Time (Tehran) to Brasília Time (São Paulo, Rio de Janeiro, Brasília).

IRST3:37 AMSat 31 Oct 2026

→

BRT9:07 PMFri 30 Oct 2026

BRT is 6 h 30 min behind IRST.

Pick a time in IRST

⇄ BRT to IRST

9:00 AM IRST = 2:30 AM BRT same day

Best time to meet

The best time to meet is between 4:00 PM and 5:00 PM IRST, which is 9:30 AM to 10:30 AM BRT. Both sides are then inside 9 AM to 5 PM.

IRST to BRT time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

IRST	BRT
12:00 AM IRST	5:30 PM BRT previous day
1:00 AM IRST	6:30 PM BRT previous day
2:00 AM IRST	7:30 PM BRT previous day
3:00 AM IRST	8:30 PM BRT previous day
4:00 AM IRST	9:30 PM BRT previous day
5:00 AM IRST	10:30 PM BRT previous day
6:00 AM IRST	11:30 PM BRT previous day
7:00 AM IRST	12:30 AM BRT
8:00 AM IRST	1:30 AM BRT
9:00 AM IRST	2:30 AM BRT
10:00 AM IRST	3:30 AM BRT
11:00 AM IRST	4:30 AM BRT
12:00 PM IRST	5:30 AM BRT
1:00 PM IRST	6:30 AM BRT
2:00 PM IRST	7:30 AM BRT
3:00 PM IRST	8:30 AM BRT
4:00 PM IRST	9:30 AM BRT
5:00 PM IRST	10:30 AM BRT
6:00 PM IRST	11:30 AM BRT
7:00 PM IRST	12:30 PM BRT
8:00 PM IRST	1:30 PM BRT
9:00 PM IRST	2:30 PM BRT
10:00 PM IRST	3:30 PM BRT
11:00 PM IRST	4:30 PM BRT

Quick answers

9:00 AM IRST = 2:30 AM BRT
12:00 PM IRST = 5:30 AM BRT
3:00 PM IRST = 8:30 AM BRT
5:00 PM IRST = 10:30 AM BRT
9:00 AM BRT = 3:30 PM IRST
12:00 PM BRT = 6:30 PM IRST
5:00 PM BRT = 11:30 PM IRST

Does the gap change during the year?

No. BRT is 6 h 30 min behind IRST all year.

IRST does not change its clocks. BRT does not change its clocks.

About IRST and BRT

IRST here means Iran Time, the clock in Tehran. Right now it is UTC+3:30. It has no daylight saving.

BRT here means Brasília Time, the clock in São Paulo, Rio de Janeiro, Brasília. Right now it is UTC−3. It has no daylight saving.

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