BRT to JST
BRT is UTC−3 and JST is UTC+9 today — JST is 12 hours ahead of BRT. Abbreviations are for reading: this page resolves BRT to America/Sao_Paulo and JST to Asia/Tokyo, which are the names that do not go ambiguous.
BRT: Brasília time, which tzdata now writes as −03.
The working day, side by side
The working days do not meet at all. Current abbreviations: UTC−3 and JST.
| City | 00:00 in BRT | 01:00 in BRT | 02:00 in BRT | 03:00 in BRT | 04:00 in BRT | 05:00 in BRT | 06:00 in BRT | 07:00 in BRT | 08:00 in BRT | 09:00 in BRT | 10:00 in BRT | 11:00 in BRT | 12:00 in BRT | 13:00 in BRT | 14:00 in BRT | 15:00 in BRT | 16:00 in BRT | 17:00 in BRT | 18:00 in BRT | 19:00 in BRT | 20:00 in BRT | 21:00 in BRT | 22:00 in BRT | 23:00 in BRT |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BRT—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| JST—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with BRT and JST
Common questions
What is BRT in JST?
JST is 12 hours ahead of BRT today: noon in BRT is 00:00 in JST.
Is BRT the same all year?
Brasília time, which tzdata now writes as −03. An abbreviation describes an offset at a moment, not a place — the zone identifier America/Sao_Paulo is the unambiguous name.
When can BRT and JST meet?
They do not overlap during working hours. 05:00–06:00 your time (17:00 there) is the cheapest compromise.