World Timezones

Tehran to São Paulo Converter

Compare São Paulo to Tehran instead
Tehran5:54 amMon, Jun 8
TehranIRST
Iran · UTC+3:30
5:54 amMon, Jun 8
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
São PauloBRT
Brazil · UTC-3
11:24 pmSun, Jun 7
5p
6p
7p
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p

Offset

The time difference between Tehran and São Paulo is 6.5 hours.

6.5 hours

Tehran (IRST) is ahead of São Paulo (BRT).

IRST: UTC+3:30

BRT: UTC-3

Neither Tehran nor São Paulo is currently observing daylight saving time.

When to schedule

Business-hours overlap: 4 PM–5 PM in Tehran (9 AM–10 AM in São Paulo).

Both teams are in working hours during this window on weekdays.

Suggested time: 4:00 PM Tehran (9:30 AM São Paulo).

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Brazil

  • New Year's DayThu, Jan 1
  • CarnivalMon, Feb 16
  • CarnivalTue, Feb 17
  • Good FridayFri, Apr 3
  • Easter SundaySun, Apr 5
  • TiradentesTue, Apr 21
  • Labour DayFri, May 1
  • Corpus ChristiThu, Jun 4
  • Independence DayMon, Sep 7
  • Our Lady of AparecidaMon, Oct 12
  • All Souls' DayMon, Nov 2
  • Republic Proclamation DaySun, Nov 15
  • Black Awareness DayFri, Nov 20
  • Christmas DayFri, Dec 25

About these zones

Tehran uses Iran Standard Time (IRST). To call Iran, dial +98.

São Paulo uses Brasilia Time (BRT). To call Brazil, dial +55.

São Paulo is approximately 7,600 miles west of Tehran.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

TehranSão PauloDay
12:00 am5:30 pm-1 day
1:00 am6:30 pm-1 day
2:00 am7:30 pm-1 day
3:00 am8:30 pm-1 day
4:00 am9:30 pm-1 day
5:00 am10:30 pm-1 day
6:00 am11:30 pm-1 day
7:00 am12:30 amSame day
8:00 am1:30 amSame day
9:00 am2:30 amSame day
10:00 am3:30 amSame day
11:00 am4:30 amSame day
12:00 pm5:30 amSame day
1:00 pm6:30 amSame day
2:00 pm7:30 amSame day
3:00 pm8:30 amSame day
4:00 pm9:30 amSame day
5:00 pm10:30 amSame day
6:00 pm11:30 amSame day
7:00 pm12:30 pmSame day
8:00 pm1:30 pmSame day
9:00 pm2:30 pmSame day
10:00 pm3:30 pmSame day
11:00 pm4:30 pmSame day

Daylight saving time

Neither Tehran nor São Paulo observes daylight saving time. The offset between these zones remains constant year-round.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Tehran
Sunrise
4:49 AM
Sunset
7:19 PM
Day length
14h 30m
São Paulo
Sunrise
6:44 AM
Sunset
5:28 PM
Day length
10h 44m

Cities in these zones

Other cities in Iran Standard Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Iran Standard Time

  • IKA
  • THR
  • MHD
  • IFN
  • PYK
  • TBZ

Airports in Brasilia Time

  • CGH
  • GRU
  • GIG
  • SDU
  • CNF
  • BSB
  • CWB
  • GYN
  • POA

Related conversions

Common conversions

What is 9:00 am Tehran in São Paulo?
9:00 am Tehran is 2:30 am São Paulo.
What is 12:00 pm Tehran in São Paulo?
12:00 pm Tehran is 5:30 am São Paulo.
What is 12:30 pm Tehran in São Paulo?
12:30 pm Tehran is 6:00 am São Paulo.
What is 2:00 pm Tehran in São Paulo?
2:00 pm Tehran is 7:30 am São Paulo.
What is 5:00 pm Tehran in São Paulo?
5:00 pm Tehran is 10:30 am São Paulo.
What is 11:30 pm Tehran in São Paulo?
11:30 pm Tehran is 5:00 pm São Paulo.