Is BSX open on Monday 4 May 1998?

Yes

Yes. BSX is open on Monday 4 May 1998, trading from 09:00 to 16:30 ADT (Hamilton time).

09:00–16:30 ADT

Regular hours

Related markets on 4 May 1998

NYSE	09:30–16:00
Nasdaq	09:30–16:00
TSX	09:30–16:00
B3	10:00–17:00
CME Equity	17:00^{−1 previous day}–16:00
LSE	Early May Bank Holiday
Xetra	09:00–17:30
Euronext Paris	09:00–17:30
SIX	09:00–17:30
TSE Tokyo	Citizen's Holiday Golden Week