JST: Japan Standard Time
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JST to BRT: convert Japan Standard Time to Brasilia Time
BRT is 12 hours behind JST all year.
Neither clock changes for daylight saving, so the gap never moves.
One instant, two local clocks
Drag one day across both zones
Shared instant12:00 UTC
Difference nowBRT is 12 hours behind
JSTJapan Standard Time
21:00Thu, Jan 15
BRTBrasilia Time
09:00Thu, Jan 15
Approximate daylight 09:00 to 17:00 Selected local time
Both lanes show the same instant. Local dates, daylight, and offsets come from each IANA zone on the selected date, so daylight saving changes are included.
Right now
BRT: Brasilia Time
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Local times come from your browser's IANA time zone data.
JST to BRT hour by hour
| JST | BRT |
|---|---|
| 12:00 AM | 12:00 PM (prev day) |
| 1:00 AM | 1:00 PM (prev day) |
| 2:00 AM | 2:00 PM (prev day) |
| 3:00 AM | 3:00 PM (prev day) |
| 4:00 AM | 4:00 PM (prev day) |
| 5:00 AM | 5:00 PM (prev day) |
| 6:00 AM | 6:00 PM (prev day) |
| 7:00 AM | 7:00 PM (prev day) |
| 8:00 AM | 8:00 PM (prev day) |
| 9:00 AM | 9:00 PM (prev day) |
| 10:00 AM | 10:00 PM (prev day) |
| 11:00 AM | 11:00 PM (prev day) |
| 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 |
Scheduling a call between JST and BRT
Standard business hours (9:00 AM to 5:00 PM) do not overlap: daytime in Japan Standard Time falls outside the working day in Brasilia Time, so one side needs an early morning or late evening.
More JST conversions
Offsets are computed from the IANA time zone database for January 15 and July 15 of the current year. JST here means Japan Standard Time (Japan); BRT means Brasilia Time (Brazil).