Montreal is typically 5 hours behind London. When it's 3:00 PM in London, it's 10:00 AM in Montreal. Both cities observe daylight saving time, but the transition dates differ slightly.
During most of the year, the difference is 5 hours. During the brief periods when Europe and North America change clocks on different weekends (usually in March and November), the difference can temporarily be 4 or 6 hours.
Optimal meeting window: 8:00 AM - 12:00 PM Montreal time (1:00 PM - 5:00 PM London). Morning Montreal catches afternoon London for good business overlap.
Montreal and London share strong ties through the Commonwealth. Air Canada operates direct flights between the cities, and there are significant business connections in finance and aerospace.