No overlap — one side will join outside working hours
TOKYO (Tokyo)
BRT (São Paulo)
00:00
12:00-1dWorking
01:00
13:00-1dWorking
02:00
14:00-1dWorking
03:00
15:00-1dWorking
04:00
16:00-1dWorking
05:00
17:00-1d
06:00
18:00-1d
07:00
19:00-1d
08:00
20:00-1d
09:00Working
21:00-1doff
10:00Working
22:00-1doff
11:00Working
23:00-1doff
12:00Working
00:00off
13:00Working
01:00off
14:00Working
02:00off
15:00Working
03:00off
16:00Working
04:00off
17:00
05:00
18:00
06:00
19:00
07:00
20:00
08:00
21:00
09:00Working
22:00
10:00Working
23:00
11:00Working
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between tokyo and brt?
TOKYO (Tokyo) (tokyo) is UTC+9 and Brasilia Time (brt) is UTC-3. The difference between them is 12 hours.
Where is tokyo used?
TOKYO (Tokyo) (tokyo) is used in Japan and surrounding regions. The IANA timezone identifier is Asia/Tokyo.
Where is brt used?
Brasilia Time (brt) is used in Brazil and surrounding regions. The IANA timezone identifier is America/Sao_Paulo.
How do I convert tokyo to brt?
Use the interactive converter above. Drag the time slider to any tokyo time and the brt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
Tokyo is 12 hours ahead of BRT (São Paulo). When Tokyo clocks hit noon, BRT (São Paulo) reads 00:00.
Tokyo runs on Asia/Tokyo; BRT (São Paulo) runs on America/Sao_Paulo. Together they are 12 hours apart.
Business hours comparison
There is no business hours overlap between Tokyo and BRT (São Paulo) during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best times to schedule a meeting
Tokyo and BRT (São Paulo) have no shared working window. These slots minimize out-of-hours disruption for both sides.
04:00 Tokyo / 16:00 São Paulo⚡ One side off-hours
⚠️ 5h before working hours in Tokyo
09:00 Tokyo / 21:00 São Paulo⚡ One side off-hours
⚠️ 5h after working hours in São Paulo
16:00 Tokyo / 04:00 São Paulo⚡ One side off-hours
⚠️ 5h before working hours in São Paulo
Working hours defined as 09:00–17:00 local time for each location.
Holiday calendar for both locations
⚡ Both locations have upcoming holidays, check availability before scheduling.
Tokyo7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
BRT (São Paulo)7 holidays
Jul 9Constitutionalist Revolution of 1932
Sep 7Independence Day
Oct 12Our Lady of Aparecida
Nov 2All Souls' Day
Nov 15Republic Proclamation Day
Working across Tokyo and BRT (São Paulo)
Teams in Tokyo (Japan) and BRT (São Paulo) (Brazil) deal with a 12-hour gap that pushes their working days apart. Real-time meetings always require someone to stretch outside the standard 9–5.
💡 Best practice for cross-timezone meetings
⚡
A 04:00 meeting in Tokyo means 16:00 in BRT (São Paulo) (5h before working hours in Tokyo).
⚡
A 09:00 meeting in Tokyo means 21:00 in BRT (São Paulo) (5h after working hours in São Paulo).
⚡
A 16:00 meeting in Tokyo means 04:00 in BRT (São Paulo) (5h before working hours in São Paulo).
Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am Tokyo".
