World Timezones

BRT to JST Converter

Compare JST to BRT instead
Brasilia Time1:35 amFri, Jun 5
Brasilia TimeBRT
South America · UTC-3
1:35 amFri, Jun 5
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Japan Standard TimeJST
Asia · UTC+9
1:35 pmFri, Jun 5
12p
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Offset

The time difference between Brasilia Time and Japan Standard Time is 12 hours.

12 hours

Brasilia Time (BRT) is behind Japan Standard Time (JST).

BRT: UTC-3

JST: UTC+9

Neither Brasilia Time nor Japan Standard Time is currently observing daylight saving time.

When to schedule

Standard business hours (9 AM–5 PM, Mon–Fri) in Brasilia Time and Japan Standard Time don't overlap on the same weekday. Japan Standard Time is 12 hours ahead of Brasilia Time.

With some flexibility, there are two workable windows outside standard hours, depending on which side takes the early or late slot:

  • 7 AM–8 AM in Brasilia Time (7 PM–8 PM in Japan Standard Time) — suggest 7:00 AM Brasilia Time (7:00 PM Japan Standard Time).
  • 7 PM–8 PM in Brasilia Time (7 AM–8 AM the next day in Japan Standard Time) — suggest 7:00 PM Brasilia Time (7:00 AM Japan Standard Time).

Either is an early start or late finish for one side, but workable for a one-off meeting.

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

Japan

  • New Year's DayThu, Jan 1
  • Coming of Age DayMon, Jan 12
  • Foundation DayWed, Feb 11
  • The Emperor's BirthdayMon, Feb 23
  • Vernal Equinox DayFri, Mar 20
  • Shōwa DayWed, Apr 29
  • Constitution Memorial DayWed, May 6
  • Greenery DayMon, May 4
  • Children's DayTue, May 5
  • Marine DayMon, Jul 20
  • Mountain DayTue, Aug 11
  • Respect for the Aged DayMon, Sep 21
  • Autumnal Equinox DayWed, Sep 23
  • Sports DayMon, Oct 12
  • Culture DayTue, Nov 3
  • Labour Thanksgiving DayMon, Nov 23

About these zones

Brasilia Time is also known as BRT. To call Brazil, dial +55.

Japan Standard Time is also known as JST. To call Japan, dial +81.

Japan Standard Time is approximately 11,500 miles northwest of Brasilia Time.

Quick reference

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

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

Daylight saving time

Neither Brasilia Time nor Japan Standard Time 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

Brasilia Time
Sunrise
6:44 AM
Sunset
5:28 PM
Day length
10h 45m
Japan Standard Time
Sunrise
4:27 AM
Sunset
6:55 PM
Day length
14h 28m

Daylight overlap: 11m — 6:44 AM–6:55 AM in Brasilia Time (6:44 PM–6:55 PM in Japan Standard Time). Both locations are in daylight during this window.

Cities in these zones

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Brasilia Time

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

Airports in Japan Standard Time

  • HND
  • NRT
  • ITM
  • KIX
  • UKB
  • NGO
  • NKM
  • CTS
  • OKD
  • FUK

Related conversions

Common conversions

What is 9:00 am BRT in JST?
9:00 am BRT is 9:00 pm JST.
What is 12:00 pm BRT in JST?
12:00 pm BRT is 12:00 am JST, the next day.
What is 12:30 pm BRT in JST?
12:30 pm BRT is 12:30 am JST, the next day.
What is 2:00 pm BRT in JST?
2:00 pm BRT is 2:00 am JST, the next day.
What is 5:00 pm BRT in JST?
5:00 pm BRT is 5:00 am JST, the next day.
What is 11:30 pm BRT in JST?
11:30 pm BRT is 11:30 am JST, the next day.