Planetary hours
in Calgary.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Thursday, 25 December 2025: day of Jupiter
- Sunrise
- 08:39
- Sunset
- 16:34
- Next sunrise
- 08:39
A day hour lasts 40 min; a night hour, 1h 20m. Local time (America/Edmonton).
Day
- 1♃︎ Jupiter08:39 – 09:18
- 2♂︎ Mars09:18 – 09:58
- 3☉︎ Sun09:58 – 10:37
- 4♀︎ Venus10:37 – 11:17
- 5☿︎ Mercury11:17 – 11:57
- 6☽︎ Moon11:57 – 12:36
- 7♄︎ Saturn12:36 – 13:16
- 8♃︎ Jupiter13:16 – 13:55
- 9♂︎ Mars13:55 – 14:35
- 10☉︎ Sun14:35 – 15:15
- 11♀︎ Venus15:15 – 15:54
- 12☿︎ Mercury15:54 – 16:34
Night
- 1☽︎ Moon16:34 – 17:54
- 2♄︎ Saturn17:54 – 19:15
- 3♃︎ Jupiter19:15 – 20:35
- 4♂︎ Mars20:35 – 21:56
- 5☉︎ Sun21:56 – 23:16
- 6♀︎ Venus23:16 – 00:36
- 7☿︎ Mercury00:36 – 01:57
- 8☽︎ Moon01:57 – 03:17
- 9♄︎ Saturn03:17 – 04:38
- 10♃︎ Jupiter04:38 – 05:58
- 11♂︎ Mars05:58 – 07:18
- 12☉︎ Sun07:18 – 08:39
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Thursday, 25 December 2025, the Sun rises at 08:39 and sets at 16:34: the day lasts 7h 55m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:39, lasts 16h 05m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Jupiter, from 08:39 to 09:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.