Here is the Mass schedule at Mary Queen of the World Cathedral, as well as details on the diocesan St. John The Baptist feast day mass.

Mary Queen of the World Cathedral reopened its main doors today, restricting church attendance to the 50-person limit recently announced by government public-health officials.

The opening hours and mass schedule is as follows:
Daily: 7 a.m. to 5 p.m.

Mass schedule: Monday to Saturday: 7:30 a.m., 8:30 a.m., 12:10 p.m., 5 p.m.- Sunday: 8 a.m., 9:30 a.m., 11 a.m., 12:30 p.m., 5 p.m.

Archbishop Christian Lépine of Montreal will celebrate ST. JOHN THE BAPTIST FEAST DAY MASS on Wednesday, June 24 at 8 a.m. Please note, the Mass will be celebrated “in camera” (privately) at Mary Queen of the World Cathedral and can be followed live on Salt + Light Television at:
https://seletlumieretv.org. That day, the regular mass schedule – open to the public – will resume only at 12:30 p.m.

Given the recent easing of government restrictions regarding public gatherings in places of worship, Catholic parishes in Montreal are currently implementing the public-health and diocesan guidelines prior to opening church doors. As details of church openings for public worship become available, they will be listed on the diocesan website, beginning this afternoon: www.diocesemontreal.org.