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