The Republic of the Congo is 4 hours ahead of Brasília right now. When it is 12:00 in Brasília, it is 16:00 in the Republic of the Congo. And it stays the same all year.
How many hours apart today
To find the time in the Republic of the Congo, add 4 hours to the time in Brasília. The Republic of the Congo follows Africa/Brazzaville (UTC+1), while Brasília is on UTC-3, so people there are already living further into the day: when it is 12:00 in Brasília, it is 16:00 in the Republic of the Congo.
From 20:00 in Brasília it is already the next calendar day in the Republic of the Congo.
Daylight saving time: does the gap change?
No. Under current rules neither the Republic of the Congo nor Brazil changes its clocks, so the difference of 4 hours holds all year round: a meeting fixed at the same Brasília time lands at the same local time in every season, with no need to recheck in March or October. Brazil abolished daylight saving time in 2019, and it only matters for the gap when the other country changes its clocks. See the daylight saving time guide for the countries that do.
Conversion table: Brasília → Republic of the Congo
| In Brasília | Republic of the Congo |
|---|---|
| 00:00 | 04:00 |
| 02:00 | 06:00 |
| 04:00 | 08:00 |
| 06:00 | 10:00 |
| 08:00 | 12:00 |
| 10:00 | 14:00 |
| 12:00 | 16:00 |
| 14:00 | 18:00 |
| 16:00 | 20:00 |
| 18:00 | 22:00 |
| 20:00 | 00:00 (next day) |
| 22:00 | 02:00 (next day) |
Calculated with today's difference (4 hours ahead).
For other dates and times, use the time zone converter.
Best times to call or hold a meeting
Assuming 9:00-18:00 office hours on both sides, the shared window runs from 09:00 to 14:00 Brasília time (13:00 to 18:00 in the Republic of the Congo), about 5 hours of overlap.
From Brazil, when it is 09:00 in Brasília, it is 13:00 in the Republic of the Congo (within office hours); at 12:00 it is 16:00 (within office hours); and at 18:00 it is 22:00 (night or very early, best avoided).
In the other direction, a call made in the Republic of the Congo at 9:00 reaches Brasília at 05:00 (night or very early, best avoided); at 12:00 it is 08:00 there (early, but reasonable); and at 18:00, 14:00 (within office hours).
The same arithmetic helps with flights, whose departure and arrival times on tickets are always in the local time of each airport, and with live broadcasts announced in another time zone. Always convert the announced time before you plan. The meeting planner compares both clocks hour by hour.