World Timezones

Calgary to London Converter

Compare London to Calgary instead
Calgary9:10 pmSun, Jun 7
CalgaryMDT
Canada · UTC-6
9:10 pmSun, Jun 7
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LondonBST
ENG, United Kingdom · UTC+1
4:10 amMon, Jun 8
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Offset

The time difference between Calgary and London is 7 hours.

7 hours

Calgary (MDT) is behind London (BST).

MDT: UTC-6

BST: UTC+1

Both zones are currently observing daylight saving time.

When to schedule

Business-hours overlap: 9 AM–10 AM in Calgary (4 PM–5 PM in London).

Both teams are in working hours during this window on weekdays.

Suggested time: 9:00 AM Calgary (4:00 PM London).

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

Canada

  • New Year's DayThu, Jan 1
  • Good FridayFri, Apr 3
  • Victoria DayMon, May 18
  • Canada DayWed, Jul 1
  • Labour DayMon, Sep 7
  • National Day for Truth and ReconciliationWed, Sep 30
  • ThanksgivingMon, Oct 12
  • Christmas DayFri, Dec 25

United Kingdom

  • Good FridayFri, Apr 3
  • Early May Bank HolidayMon, May 4
  • Spring Bank HolidayMon, May 25
  • Christmas DayFri, Dec 25
  • St. Stephen's DayMon, Dec 28

About these zones

Calgary uses Mountain Time (MST, or MDT). To call Canada, dial +1.

London uses Greenwich Mean Time (GMT, or BST). To call United Kingdom, dial +44.

London is approximately 4,350 miles northeast of Calgary.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

CalgaryLondonDay
12:00 am7:00 amSame day
1:00 am8:00 amSame day
2:00 am9:00 amSame day
3:00 am10:00 amSame day
4:00 am11:00 amSame day
5:00 am12:00 pmSame day
6:00 am1:00 pmSame day
7:00 am2:00 pmSame day
8:00 am3:00 pmSame day
9:00 am4:00 pmSame day
10:00 am5:00 pmSame day
11:00 am6:00 pmSame day
12:00 pm7:00 pmSame day
1:00 pm8:00 pmSame day
2:00 pm9:00 pmSame day
3:00 pm10:00 pmSame day
4:00 pm11:00 pmSame day
5:00 pm12:00 am+1 day
6:00 pm1:00 am+1 day
7:00 pm2:00 am+1 day
8:00 pm3:00 am+1 day
9:00 pm4:00 am+1 day
10:00 pm5:00 am+1 day
11:00 pm6:00 am+1 day

Daylight saving time

Both zones observe daylight saving time, but they transition on different dates.

Calgary: next transition on Sunday, November 1, 2026.

London: next transition on Sunday, October 25, 2026.

For approximately 7 days between transitions, the offset between Calgary and London differs from its typical value. Recurring meetings during this window will shift by one hour.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Calgary
Sunrise
5:24 AM
Sunset
9:48 PM
Day length
16h 24m
London
Sunrise
4:46 AM
Sunset
9:15 PM
Day length
16h 30m

Daylight overlap: 2m — 9:46 PM–9:48 PM in Calgary (4:46 AM–4:48 AM in London). Both locations are in daylight during this window.

Cities in these zones

Other cities in Mountain Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Mountain Time

  • YYC
  • YEG

Airports in Greenwich Mean Time

  • LCY
  • LGW
  • LHR
  • LTN
  • STN
  • BHX
  • EMA
  • GLA
  • PIK
  • LBA

Related conversions

Common conversions

What is 9:00 am Calgary in London?
9:00 am Calgary is 4:00 pm London.
What is 12:00 pm Calgary in London?
12:00 pm Calgary is 7:00 pm London.
What is 12:30 pm Calgary in London?
12:30 pm Calgary is 7:30 pm London.
What is 2:00 pm Calgary in London?
2:00 pm Calgary is 9:00 pm London.
What is 5:00 pm Calgary in London?
5:00 pm Calgary is 12:00 am London, the next day.
What is 11:30 pm Calgary in London?
11:30 pm Calgary is 6:30 am London, the next day.