Is the B3 open right now? São Paulo trading hours
The B3 (Brasil Bolsa Balcão) (B3) trades 10:00–17:00 São Paulo local time (UTC-3), Monday to Friday. That's 7 hours a day. The live status above shows whether it's open this second and counts down to the next bell, in your own timezone.
| time zone | trading hours |
|---|---|
| São Paulo (local) | 10:00–17:00 |
| London | 14:00–21:00 |
| New York | 09:00–16:00 |
About B3 trading hours
The B3 (Brasil Bolsa Balcão) runs on America/Sao_Paulo, currently UTC-3. Its regular session is 10:00–17:00 in São Paulo, 7 hours of continuous trading with no lunch break. The table above translates those hours into London and New York time so you can see exactly when the bell rings from wherever you follow the market.
Because the exchange keeps local time, its hours move when São Paulo changes its clocks for daylight saving, and since not every financial centre shifts on the same date, the gap between B3 and other exchanges wobbles by an hour for a few weeks each spring and autumn. The live panel at the top sidesteps all of that: it reads the current offset straight from the time-zone database, so OPEN, CLOSED and the countdown are always right to the second.
One caveat: this tracker models the regular weekly schedule only. It does not know about public holidays, half-days or unscheduled halts, when the B3 may be closed even though the panel would otherwise show it inside trading hours. For anything time-critical, confirm against the exchange's official holiday calendar.
Sources and last check
Times, offsets and sun positions on this page are computed live from the IANA timezone database and the NOAA solar algorithm, so they do not depend on the review dates below.
- Trading sessions for 16 stock exchanges
- Source: Each exchange's published trading-hours page. Last checked, reviewed every 6 months.
Not covered:Regular weekly schedule only. Public holidays, half days and unscheduled halts are not modelled.
FAQ
What are the B3 trading hours?
10:00–17:00 São Paulo local time (UTC-3), Monday to Friday, 7 hours per trading day.
Is the B3 open right now?
The status panel above updates live from São Paulo's time zone and shows OPEN or CLOSED plus a countdown to the next open or close. Note: it does not account for exchange holidays.
What time zone does the B3 use?
America/Sao_Paulo (UTC-3 right now), so its hours shift with daylight saving in São Paulo, the live panel always uses the current offset.