Time Difference Between Montreal and London

The time difference between Montreal and London is 4 hours. When it is 12:00 noon in Montreal, it is 16:00 in London. Montreal uses the America/Toronto time zone (UTC-4), while London uses Europe/London (UTC+0).

London is 4 hours ahead of Montreal — 4 hours
Montreal, Canada
16:59:18
Thursday, March 26, 2026
UTC-4 · EDT (DST)
London, United Kingdom
20:59:18
Thursday, March 26, 2026
UTC+0 · GMT

Time Zone Details: Montreal vs London

Detail Montreal London
Time Zone IDAmerica/TorontoEurope/London
UTC OffsetUTC-4UTC+0
AbbreviationEDTGMT
DST ActiveYes — currently observingNo
CountryCanadaUnited Kingdom
RegionNorth AmericaEurope

Best Time to Schedule a Call

There are 4 overlapping business hours between Montreal and London (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

09:00–13:00 in Montreal  =  13:00–17:00 in London

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from Montreal time to London time. Rows highlighted in green indicate overlapping business hours in both cities.

Montreal London
00:00 04:00 Night
01:00 05:00 Night
02:00 06:00 Night
03:00 07:00 Night
04:00 08:00 Night
05:00 09:00 Night
06:00 10:00
07:00 11:00
08:00 12:00
09:00 13:00 Overlap
10:00 14:00 Overlap
11:00 15:00 Overlap
12:00 16:00 Overlap
13:00 17:00
14:00 18:00
15:00 19:00
16:00 20:00
17:00 21:00
18:00 22:00
19:00 23:00
20:00 00:00 (+1 day)
21:00 01:00 (+1 day)
22:00 02:00 (+1 day) Night
23:00 03:00 (+1 day) Night

Daylight Saving Time (DST) Impact

Montreal is currently observing daylight saving time, while London is on standard time. When Montreal switches back to standard time, the difference between these two cities will shift by 1 hour.

Practical Tips for Montreal–London Scheduling

Compare Montreal and London with Other Cities

From Montreal

From London

Frequently Asked Questions

What is the time difference between Montreal and London?

The time difference is 4 hours. London is 4 hours ahead of Montreal.

Does the time difference change during the year?

Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.

When is the best time to call from Montreal to London?

The best window is between 09:00 and 13:00 Montreal time, which corresponds to 13:00–17:00 in London. Both sides fall within normal business hours.

How do I convert Montreal time to London time?

Add 4 hours to Montreal time to get London time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.