UK to Calgary Time Converter
About this conversion
Calgary is on Mountain Time, seven hours behind the UK for most of the year. Alberta changes its clocks on the same dates as the United States.
Calgary is the centre of Canada's energy industry and has long links with the UK. The 07:00 to 09:00 Calgary morning is 14:00 to 16:00 in the UK, so the UK afternoon is when calls are made, and flights from London take around nine hours.
When the time difference changes
Changes over the next two years, from daylight saving on either side.
- Sunday, 25 October 2026: Calgary becomes 6 hours behind UK.
- Sunday, 1 November 2026: Calgary becomes 7 hours behind UK.
- Sunday, 14 March 2027: Calgary becomes 6 hours behind UK.
- Sunday, 28 March 2027: Calgary becomes 7 hours behind UK.
- Sunday, 31 October 2027: Calgary becomes 6 hours behind UK.
- Sunday, 7 November 2027: Calgary becomes 7 hours behind UK.
- Sunday, 12 March 2028: Calgary becomes 6 hours behind UK.
- Sunday, 26 March 2028: Calgary becomes 7 hours behind UK.
Best time to call or meet
16:00 to 17:00 UK is 09:00 to 10:00 Calgary, 1 hour of shared 09:00 to 17:00 time.
Common times
- 06:00 UK = 23:00 Calgary (previous day)
- 09:00 UK = 02:00 Calgary
- 12:00 UK = 05:00 Calgary
- 15:00 UK = 08:00 Calgary
- 17:00 UK = 10:00 Calgary
- 20:00 UK = 13:00 Calgary
UK to Calgary hour-by-hour table
Highlighted rows fall within 09:00 to 17:00 on both sides.
| UK | Calgary |
|---|---|
| 00:00 | 17:00 (previous day) |
| 01:00 | 18:00 (previous day) |
| 02:00 | 19:00 (previous day) |
| 03:00 | 20:00 (previous day) |
| 04:00 | 21:00 (previous day) |
| 05:00 | 22:00 (previous day) |
| 06:00 | 23:00 (previous day) |
| 07:00 | 00:00 |
| 08:00 | 01:00 |
| 09:00 | 02:00 |
| 10:00 | 03:00 |
| 11:00 | 04:00 |
| 12:00 | 05:00 |
| 13:00 | 06:00 |
| 14:00 | 07:00 |
| 15:00 | 08:00 |
| 16:00 | 09:00 |
| 17:00 | 10:00 |
| 18:00 | 11:00 |
| 19:00 | 12:00 |
| 20:00 | 13:00 |
| 21:00 | 14:00 |
| 22:00 | 15:00 |
| 23:00 | 16:00 |
Related conversions
Clock change guides
- What Is Daylight Saving Time (DST)? A Plain-English GuideWhat daylight saving time is, how it works in the UK, Europe and the US, why it exists, its history, who uses it and the argument over scrapping it.
- Why Do the Clocks Go Back in October? The Real ReasonThe clocks go back in autumn to return the UK to GMT, so winter mornings are lighter. The history, the rule, what time it happens and what changes for you.
- When Do the Clocks Go Forward Again After Going Back?When the UK clocks go forward again after the autumn change, how long the UK stays on GMT, when evenings get lighter and how to remember to reset your clocks.
Frequently asked questions
What is 15:00 UK in Calgary?
15:00 UK is 08:00 Calgary at the moment. The answer can change by an hour when either side changes its clocks.
What are the shared working hours for UK and Calgary?
Counting 09:00 to 17:00 as the working day on both sides, there are 1 shared hour, starting at 16:00 UK.
When does the UK to Calgary time difference change?
It next changes on Sunday, 25 October 2026, when the gap becomes 6 hours behind.
What is the time difference between London and Calgary?
Seven hours for most of the year, six hours in the changeover weeks.
Is Calgary the same time as Denver?
Yes. Both are on Mountain Time.