Offset
The time difference between Japan Standard Time and Brasilia Time is 12 hours.
Japan Standard Time (JST) is ahead of Brasilia Time (BRT).
JST: UTC+9
BRT: UTC-3
Neither Japan Standard Time nor Brasilia Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Japan Standard Time and Brasilia Time don't overlap on the same weekday. Brasilia Time is 12 hours behind Japan Standard Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 PM–8 PM in Japan Standard Time (7 AM–8 AM in Brasilia Time) — suggest 7:00 PM Japan Standard Time (7:00 AM Brasilia Time).
This means an early start or late finish for one side, but it’s a reasonable slot 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.
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
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
Japan Standard Time is also known as JST. To call Japan, dial +81.
Brasilia Time is also known as BRT. To call Brazil, dial +55.
Brasilia Time is approximately 11,500 miles northeast of Japan Standard Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| JST | BRT | Day |
|---|---|---|
| 12:00 am | 12:00 pm | -1 day |
| 1:00 am | 1:00 pm | -1 day |
| 2:00 am | 2:00 pm | -1 day |
| 3:00 am | 3:00 pm | -1 day |
| 4:00 am | 4:00 pm | -1 day |
| 5:00 am | 5:00 pm | -1 day |
| 6:00 am | 6:00 pm | -1 day |
| 7:00 am | 7:00 pm | -1 day |
| 8:00 am | 8:00 pm | -1 day |
| 9:00 am | 9:00 pm | -1 day |
| 10:00 am | 10:00 pm | -1 day |
| 11:00 am | 11:00 pm | -1 day |
| 12:00 pm | 12:00 am | Same day |
| 1:00 pm | 1:00 am | Same day |
| 2:00 pm | 2:00 am | Same day |
| 3:00 pm | 3:00 am | Same day |
| 4:00 pm | 4:00 am | Same day |
| 5:00 pm | 5:00 am | Same day |
| 6:00 pm | 6:00 am | Same day |
| 7:00 pm | 7:00 am | Same day |
| 8:00 pm | 8:00 am | Same day |
| 9:00 pm | 9:00 am | Same day |
| 10:00 pm | 10:00 am | Same day |
| 11:00 pm | 11:00 am | Same day |
Daylight saving time
Neither Japan Standard Time nor Brasilia 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
- Sunrise
- 4:27 AM
- Sunset
- 6:55 PM
- Day length
- 14h 28m
- Sunrise
- 6:44 AM
- Sunset
- 5:28 PM
- Day length
- 10h 45m
Daylight overlap: 11m — 6:44 PM–6:55 PM in Japan Standard Time (6:44 AM–6:55 AM in Brasilia Time). Both locations are in daylight during this window.
Cities in these zones
Cities in Japan Standard Time
Cities in Brasilia Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Japan Standard Time
- HND
- NRT
- ITM
- KIX
- UKB
- NGO
- NKM
- CTS
- OKD
- FUK
Airports in Brasilia Time
- CGH
- GRU
- GIG
- SDU
- CNF
- BSB
- CWB
- GYN
- POA
Related conversions
Common conversions
- What is 9:00 am JST in BRT?
- 9:00 am JST is 9:00 pm BRT, the previous day.
- What is 12:00 pm JST in BRT?
- 12:00 pm JST is 12:00 am BRT.
- What is 12:30 pm JST in BRT?
- 12:30 pm JST is 12:30 am BRT.
- What is 2:00 pm JST in BRT?
- 2:00 pm JST is 2:00 am BRT.
- What is 5:00 pm JST in BRT?
- 5:00 pm JST is 5:00 am BRT.
- What is 11:30 pm JST in BRT?
- 11:30 pm JST is 11:30 am BRT.