Is B3 open on Monday 10 October 2016?

Yes

Yes. B3 is open on Monday 10 October 2016, trading from 10:00 to 17:00 GMT-3 (São Paulo time).

10:00–17:00 GMT-3

Regular hours

Related markets on 10 Oct 2016

NYSE	09:30–16:00
Nasdaq	09:30–16:00
TSX	Canadian Thanksgiving
CME Equity	17:00^{−1 previous day}–16:00
LSE	08:00–16:30
Xetra	09:00–17:30
Euronext Paris	09:00–17:30
SIX	09:00–17:30
TSE Tokyo	Health and Sports Day (2000 - 2019)
HKEX	Double Ninth Festival (observed)