Dusk and last light in Calgary
Last light (civil dusk) in Calgary today fades at 19:44, about 33 minutes after the sun sets at 19:11. The sky is fully dark by astronomical dusk at 21:01. Times for Thursday, 1 October 2026, in Calgary's local time zone.
| Stage | What it means | Local time |
|---|---|---|
| Sunset | the sun dips below the horizon | 19:11 |
| Civil dusk (last light) | sun 6° below, usable light ends | 19:44 |
| Nautical dusk | sun 12° below, sea horizon gone | 20:22 |
| Astronomical dusk | sun 18° below, full night | 21:01 |
Dusk in Calgary, stage by stage
Dusk in Calgary runs the same three stages as dawn, in reverse. Once the sun sets, civil dusk, the last usable light, lingers until the sun is 6 degrees below the horizon. Nautical dusk follows at 12 degrees, when the sea horizon disappears, and astronomical dusk at 18 degrees, after which the sky is fully dark and the faintest stars appear. How long dusk lasts depends on Calgary's latitude: near the equator night falls fast, while at high latitudes dusk can stretch for hours or, in high summer, never fully darken. Every time here is computed for Calgary's coordinates and shown in its local time zone.
Frequently asked questions about dusk in Calgary
What time is last light in Calgary today?
Last light (civil dusk) in Calgary fades at 19:44 on Thursday, 1 October 2026, about 33 minutes after sunset at 19:11. All times are in Calgary's local time zone.
What is the difference between dusk and sunset in Calgary?
Sunset is the instant the sun disappears below the horizon in Calgary; dusk is the fading twilight that follows. Last light (civil dusk) ends the usable light after sunset.
When does it get fully dark in Calgary?
Calgary reaches full darkness at astronomical dusk, 21:01 on Thursday, 1 October 2026, when the sun is 18 degrees below the horizon.
Every time on this page is computed from Calgary's coordinates with SunCalc, not estimated or looked up from a table.