Does Calgary observe daylight saving time?

Yes. Calgary is on MDT (UTC-6) now, and its clocks go back 1 hour on Sun, Nov 1, to MST (UTC-7).

Does London observe daylight saving time?

Yes. London is on BST (UTC+1) now, and its clocks go back 1 hour on Sun, Oct 25, to GMT (UTC+0).

What time is it in London when it's 9 AM in Calgary?

4:00 PM in London, on the same day.

Calgary to London Meeting Planner

London is 7 hours ahead of Calgary right now. Their working days overlap for 1 hour today.

Calgary · Canada

7:53 AM

Sat, Oct 17 · MDT · summer time

London · United Kingdom

2:53 PM

Sat, Oct 17 · BST · summer time

Best Meeting Times Between Calgary and London

9:00 AM to 10:00 AM in Calgary (4:00 PM to 5:00 PM in London). That's when both cities are inside working hours, 9 AM to 5 PM, giving 1 hour of overlap today.

Who's meeting

2 of 4 places

CalgaryOrganizerCanada ·· summer time7:53AMnow
LondonUnited Kingdom ·· summer time2:53PMnow

Add a city

Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in Calgary

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in Calgary time.

9:00AMBest · OptimalWorking hours in Calgary (09:00) and London (16:00).
12:00PMOption 2 · GoodWorking hours in Calgary (12:00); just outside working hours in London (19:00).
11:00AMOption 3 · GoodWorking hours in Calgary (11:00); just outside working hours in London (18:00).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a one-hour slot of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
CalgaryMDT
LondonBST
UTC	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

Calgary9:00 AM MDTSat, Oct 17
London4:00 PM BSTSat, Oct 17
UTC2026-10-17 15:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Calgary and London

London is 7 hours ahead of Calgary right now: London is on BST (UTC+1) and Calgary on MDT (UTC-6). That changes on Sun, Oct 25, when clocks go back in London: then London is 6 hours ahead of Calgary.

Time difference between Calgary and London over the next 12 months
From	Difference	Why
Now	London 7 hours ahead	—
Sun, Oct 25	London 6 hours ahead	Clocks go back in London
Sun, Nov 1	London 7 hours ahead	Clocks go back in Calgary
Sun, Mar 14, 2027	London 6 hours ahead	Clocks go forward in Calgary
Sun, Mar 28, 2027	London 7 hours ahead	Clocks go forward in London

Calgary is on Mountain Standard Time. London is on Greenwich Mean Time.

Frequently Asked Questions: Calgary & London Scheduling

What is the time difference between Calgary and London?: London is 7 hours ahead of Calgary right now: London is on BST (UTC+1) and Calgary on MDT (UTC-6). That changes on Sun, Oct 25, when clocks go back in London: then London is 6 hours ahead of Calgary.
What is the best time to schedule a meeting between Calgary and London?: 9:00 AM to 10:00 AM in Calgary (4:00 PM to 5:00 PM in London). That's when both cities are inside working hours, 9 AM to 5 PM, giving 1 hour of overlap today.
Does Calgary observe daylight saving time?: Yes. Calgary is on MDT (UTC-6) now, and its clocks go back 1 hour on Sun, Nov 1, to MST (UTC-7).
Does London observe daylight saving time?: Yes. London is on BST (UTC+1) now, and its clocks go back 1 hour on Sun, Oct 25, to GMT (UTC+0).
What time is it in London when it's 9 AM in Calgary?: 4:00 PM in London, on the same day.

Or see every city pair, or plan with more places in the meeting planner.