No overlap — one side will join outside working hours
HKT (Hong Kong)
BRT (São Paulo)
00:00
13:00-1dWorking
01:00
14:00-1dWorking
02:00
15:00-1dWorking
03:00
16:00-1dWorking
04:00
17:00-1d
05:00
18:00-1d
06:00
19:00-1d
07:00
20:00-1d
08:00
21:00-1d
09:00Working
22:00-1doff
10:00Working
23:00-1doff
11:00Working
00:00off
12:00Working
01:00off
13:00Working
02:00off
14:00Working
03:00off
15:00Working
04:00off
16:00Working
05:00off
17:00
06:00
18:00
07:00
19:00
08:00
20:00
09:00Working
21:00
10:00Working
22:00
11:00Working
23:00
12:00Working
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between hkt and brt?
Hong Kong Time (hkt) is UTC+8 and Brasilia Time (brt) is UTC-3. The difference between them is 11 hours.
Where is hkt used?
Hong Kong Time (hkt) is used in Hong Kong and surrounding regions. The IANA timezone identifier is Asia/Hong_Kong.
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 hkt to brt?
Use the interactive converter above. Drag the time slider to any hkt time and the brt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
HKT (Hong Kong) is 11 hours ahead of BRT (São Paulo). At noon in HKT (Hong Kong), your contact in BRT (São Paulo) sees 01:00.
HKT (Hong Kong) runs on Asia/Hong_Kong; BRT (São Paulo) runs on America/Sao_Paulo. Together they are 11 hours apart.
Mutual working hours
There is no business hours overlap between HKT (Hong Kong) and BRT (São Paulo) during standard working hours (9:00–17:00). Meetings would require one party to work outside normal hours.
Best call times between these locations
HKT (Hong Kong) and BRT (São Paulo) have no shared working window. These slots minimize out-of-hours disruption for both sides.
16:00 Hong Kong / 05:00 São Paulo⚡ One side off-hours
⚠️ 4h before working hours in São Paulo
20:00 Hong Kong / 09:00 São Paulo⚡ One side off-hours
⚠️ 4h after working hours in Hong Kong
15:00 Hong Kong / 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.
Public holidays for both locations
⚡ Holiday alerts for both locations, double-check schedules before confirming.
HKT (Hong Kong)7 holidays
Jun 19Dragon Boat FestivalSOON
Jul 1Hong Kong Special Administrative Region Establishment DaySOON
Sep 26Day following the Mid-Autumn Festival
Oct 1National Day
Oct 19Chung Yeung Festival
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
Scheduling between HKT (Hong Kong) and BRT (São Paulo)
HKT (Hong Kong) (Hong Kong) and BRT (São Paulo) (Brazil) are 11 hours apart — far enough that standard 9–5 schedules do not overlap. Any real-time meeting means someone is joining outside their normal hours.
💡 Scheduling tips for these locations
⚡
A 16:00 meeting in HKT (Hong Kong) means 05:00 in BRT (São Paulo) (4h before working hours in São Paulo).
⚡
A 20:00 meeting in HKT (Hong Kong) means 09:00 in BRT (São Paulo) (4h after working hours in Hong Kong).
⚡
A 15:00 meeting in HKT (Hong Kong) means 04:00 in BRT (São Paulo) (5h before working hours in São Paulo).
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
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 HKT (Hong Kong)".
