BRT to JST Converter
JST is 12 hours ahead of BRT. 9:00 AM BRT = 9:00 PM JST.
JST is 12 hours ahead of BRT. To convert BRT to JST, add 12 hours to the BRT time: 9:00 AM BRT = 9:00 PM JST.
BRT (Brasília Time) is used in Brasília, São Paulo, Rio de Janeiro. JST (Japan Time) is used in Japan.
BRT to JST time conversion table
BRT to JST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| BRT | JST | Day |
|---|---|---|
| 12:00 AM BRT | 12:00 PM JST | — |
| 1:00 AM BRT | 1:00 PM JST | — |
| 2:00 AM BRT | 2:00 PM JST | — |
| 3:00 AM BRT | 3:00 PM JST | — |
| 4:00 AM BRT | 4:00 PM JST | — |
| 5:00 AM BRT | 5:00 PM JST | — |
| 6:00 AM BRT | 6:00 PM JST | — |
| 7:00 AM BRT | 7:00 PM JST | — |
| 8:00 AM BRT | 8:00 PM JST | — |
| 9:00 AM BRT | 9:00 PM JST | — |
| 10:00 AM BRT | 10:00 PM JST | night |
| 11:00 AM BRT | 11:00 PM JST | night |
| 12:00 PM BRT | 12:00 AM JST | next day |
| 1:00 PM BRT | 1:00 AM JST | next day |
| 2:00 PM BRT | 2:00 AM JST | next day |
| 3:00 PM BRT | 3:00 AM JST | next day |
| 4:00 PM BRT | 4:00 AM JST | next day |
| 5:00 PM BRT | 5:00 AM JST | next day |
| 6:00 PM BRT | 6:00 AM JST | next day |
| 7:00 PM BRT | 7:00 AM JST | next day |
| 8:00 PM BRT | 8:00 AM JST | next day |
| 9:00 PM BRT | 9:00 AM JST | next day |
| 10:00 PM BRT | 10:00 AM JST | next day |
| 11:00 PM BRT | 11:00 AM JST | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert BRT to JST
Add 12 hours to the BRT time to get JST.
Example: 9:00 AM BRT = 9:00 PM JST.
Across midnight: 10:00 PM BRT = 10:00 AM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between BRT and JST
The time difference between BRT and JST is 12 hours all year – JST is ahead of BRT.
BRT and JST during daylight saving time
- BRT does not observe daylight saving time; it stays on UTC−3 all year.
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between BRT and JST
BRT and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM BRT, which is 7:00 PM JST.
BRT to JST FAQ
What is the time difference between BRT and JST?
JST is 12 hours ahead of BRT all year. 9:00 AM BRT = 9:00 PM JST.
What is 9 AM BRT in JST?
9:00 AM BRT is 9:00 PM JST.
What is 12 PM (noon) BRT in JST?
12:00 PM BRT is 12:00 AM JST (next day).
Is JST ahead of or behind BRT?
JST is 12 hours ahead of BRT, so it is later in JST than in BRT.
Does BRT change for daylight saving time?
No. BRT stays on the same offset all year, so conversions never shift for daylight saving time.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between BRT and JST?
BRT and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM BRT, which is 7:00 PM JST.
Related conversions
Convert JST to BRT
Convert BRT to other time zones
Convert other time zones to JST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.