Longest and shortest day in Calgary
In Calgary, Canada, the longest day of 2026 is around the June solstice on Sunday, 21 June 2026, with 16h 33m of daylight, and the shortest is around the December solstice on Monday, 21 December 2026, with 7h 54m.
| Turning point | Date | Sunrise | Sunset | Day length |
|---|---|---|---|---|
| March equinox | Friday, 20 March 2026 | 07:38 | 19:49 | 12h 11m |
| June solstice | Sunday, 21 June 2026 | 05:21 | 21:54 | 16h 33m |
| September equinox | Tuesday, 22 September 2026 | 07:22 | 19:33 | 12h 11m |
| December solstice | Monday, 21 December 2026 | 08:37 | 16:31 | 7h 54m |
| Month | Sunrise | Sunset | Day length |
|---|---|---|---|
| January | 08:33 | 16:58 | 8h 26m |
| February | 07:49 | 17:52 | 10h 3m |
| March | 07:50 | 19:41 | 11h 51m |
| April | 06:41 | 20:32 | 13h 51m |
| May | 05:46 | 21:19 | 15h 34m |
| June | 05:21 | 21:52 | 16h 32m |
| July | 05:39 | 21:44 | 16h 5m |
| August | 06:23 | 20:56 | 14h 33m |
| September | 07:11 | 19:49 | 12h 38m |
| October | 08:00 | 18:43 | 10h 43m |
| November | 07:53 | 16:48 | 8h 55m |
| December | 08:33 | 16:29 | 7h 56m |
Why the day gets longer and shorter in Calgary
Earth's axis is tilted about 23.4 degrees, so as the planet orbits the Sun, Calgary leans toward the Sun for part of the year and away for the rest. When it leans toward the Sun the days lengthen and the Sun climbs higher; half a year later the opposite happens. The size of the swing depends on how far Calgary sits from the equator: the further away, the bigger the difference between the longest and shortest day.
Frequently asked questions about day length in Calgary
When is the longest day in Calgary?
The longest day in Calgary falls around the June solstice, on Sunday, 21 June 2026 in 2026, with about 16h 33m of daylight, sunrise at 05:21 and sunset at 21:54.
When is the shortest day in Calgary?
The shortest day in Calgary falls around the December solstice, on Monday, 21 December 2026 in 2026, with about 7h 54m of daylight, sunrise at 08:37 and sunset at 16:31.
How much does day length change through the year in Calgary?
Between the longest and shortest day, Calgary gains and loses about 8h 39m of daylight. The change is fastest around the March and September equinoxes and slowest near the solstices.
Every figure is computed from Calgary's coordinates with SunCalc, not looked up from a table.