Ireland to Calgary
Calgary is 7 hours behind Ireland.
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When to ring
Ring between 15:00 and 22:00 Irish time. That is 08:00 to 15:00 in Calgary.
| In Ireland | In Calgary | Worth ringing? |
|---|---|---|
| 07:00 | 00:00 | They are asleep |
| 08:00 | 01:00 | They are asleep |
| 09:00 | 02:00 | They are asleep |
| 10:00 | 03:00 | They are asleep |
| 11:00 | 04:00 | They are asleep |
| 12:00 | 05:00 | They are asleep |
| 13:00 | 06:00 | They are asleep |
| 14:00 | 07:00 | Early or late |
| 15:00 | 08:00 | Yes |
| 16:00 | 09:00 | Yes |
| 17:00 | 10:00 | Yes |
| 18:00 | 11:00 | Yes |
| 19:00 | 12:00 | Yes |
| 20:00 | 13:00 | Yes |
| 21:00 | 14:00 | Yes |
| 22:00 | 15:00 | Yes |
Based on the current 7 hours difference. It changes on the dates below.
The difference is not fixed
Ireland changes its clocks on the last Sunday in March and the last Sunday in October. Calgary changes on different dates. So for a few weeks each year the difference is an hour off what people expect.
| From | Calgary is |
|---|---|
| Now | 7 hours behind Ireland |
| Sunday 25 October 2026 | 6 hours behind Ireland |
| Sunday 1 November 2026 | 7 hours behind Ireland |
| Sunday 14 March 2027 | 6 hours behind Ireland |
| Sunday 28 March 2027 | 7 hours behind Ireland |
| Sunday 31 October 2027 | 6 hours behind Ireland |
Questions
How many hours behind is Calgary from Ireland?
Calgary is 7 hours behind Ireland. This is not fixed all year: from Sunday 25 October 2026 the difference becomes 6 hours, because Ireland and Calgary change their clocks on different dates.
What time is it in Calgary when it's 9am in Ireland?
When it is 09:00 in Ireland it is 02:00 in Calgary.
When is the best time to ring Calgary from Ireland?
Between 15:00 and 22:00 Irish time, which is 08:00 to 15:00 in Calgary. Outside that window you are ringing someone who is asleep or about to be.
Does Calgary change its clocks like Ireland does?
Yes, but not on the same dates. Calgary next changes on Sunday 1 November 2026; Ireland next changes on Sunday 25 October 2026. In between, the usual difference is out by an hour.
Ireland to somewhere else
The same comparison for every other place we work out call times for, ordered from the smallest gap to the largest.
- Los Angeles 8 hours behind
- San Francisco 8 hours behind
- Vancouver 8 hours behind
- Denver 7 hours behind
- Chicago 6 hours behind
- Boston 5 hours behind
- Montréal 5 hours behind
- New York 5 hours behind
- Toronto 5 hours behind
- Washington, D.C. 5 hours behind
- Lisbon same time
- London same time
- Amsterdam 1 hour ahead
- Barcelona 1 hour ahead
- Budapest 1 hour ahead
- Johannesburg 1 hour ahead
- Madrid 1 hour ahead
- Malaga 1 hour ahead
- Paris 1 hour ahead
- Prague 1 hour ahead
- Warsaw 1 hour ahead
- Bucharest 2 hours ahead
- Doha 2 hours ahead
- Riga 2 hours ahead
- Riyadh 2 hours ahead
- Sofia 2 hours ahead
- Vilnius 2 hours ahead
- Abu Dhabi 3 hours ahead
- Dubai 3 hours ahead
- Bengaluru 4 hours 30 minutes ahead
- Chennai 4 hours 30 minutes ahead
- Delhi 4 hours 30 minutes ahead
- Kolkata 4 hours 30 minutes ahead
- Mumbai 4 hours 30 minutes ahead
- Bangkok 6 hours ahead
- Hong Kong 7 hours ahead
- Perth 7 hours ahead
- Singapore 7 hours ahead
- Tokyo 8 hours ahead
- Adelaide 8 hours 30 minutes ahead
- Darwin 8 hours 30 minutes ahead
- Brisbane 9 hours ahead
- Canberra 9 hours ahead
- Melbourne 9 hours ahead
- Sydney 9 hours ahead
- Auckland 11 hours ahead
- Wellington 11 hours ahead