JST to BRT Converter
BRT is 12 hours behind JST
JST to BRT Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in BRT
| JST | BRT |
|---|---|
| 12:00 AM | 12:00 PM -1d |
| 1:00 AM | 1:00 PM -1d |
| 2:00 AM | 2:00 PM -1d |
| 3:00 AM | 3:00 PM -1d |
| 4:00 AM | 4:00 PM -1d |
| 5:00 AM | 5:00 PM -1d |
| 6:00 AM | 6:00 PM -1d |
| 7:00 AM | 7:00 PM -1d |
| 8:00 AM | 8:00 PM -1d |
| 9:00 AM | 9:00 PM -1d |
| 10:00 AM | 10:00 PM -1d |
| 11:00 AM | 11:00 PM -1d |
| 12:00 PM | 12:00 AM |
| 1:00 PM | 1:00 AM |
| 2:00 PM | 2:00 AM |
| 3:00 PM | 3:00 AM |
| 4:00 PM | 4:00 AM |
| 5:00 PM | 5:00 AM |
| 6:00 PM | 6:00 AM |
| 7:00 PM | 7:00 AM |
| 8:00 PM | 8:00 AM |
| 9:00 PM | 9:00 AM |
| 10:00 PM | 10:00 AM |
| 11:00 PM | 11:00 AM |
Converting Japan Standard Time to Brasilia Time
Japan Standard Time (JST) and Brasilia Time (BRT) are separated by a 12 hours time difference. BRT is 12 hours behind JST. JST is UTC+9, used in Japan, while BRT is UTC-3, used in Brazil.
When converting from JST to BRT, the key reference points to remember are: 9:00 AM JST equals 9:00 PM BRT, 12:00 PM noon JST equals 12:00 AM BRT, and 5:00 PM JST equals 5:00 AM BRT. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across JST and BRT
For professionals scheduling meetings between JST and BRT, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 12 hours difference, the window of overlap may be limited, making early morning or late evening calls necessary for one party. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
JST does not observe Daylight Saving Time, maintaining UTC+9 year-round. BRT does not observe DST, staying at UTC-3 year-round.