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, 4 December 2025: day of Jupiter
- Sunrise
- 08:22
- Sunset
- 16:31
- Next sunrise
- 08:23
A day hour lasts 41 min; a night hour, 1h 19m. Local time (America/Edmonton).
Day
- 1♃︎ Jupiter08:22 – 09:02
- 2♂︎ Mars09:02 – 09:43
- 3☉︎ Sun09:43 – 10:24
- 4♀︎ Venus10:24 – 11:05
- 5☿︎ Mercury11:05 – 11:45
- 6☽︎ Moon11:45 – 12:26
- 7♄︎ Saturn12:26 – 13:07
- 8♃︎ Jupiter13:07 – 13:48
- 9♂︎ Mars13:48 – 14:28
- 10☉︎ Sun14:28 – 15:09
- 11♀︎ Venus15:09 – 15:50
- 12☿︎ Mercury15:50 – 16:31
Night
- 1☽︎ Moon16:31 – 17:50
- 2♄︎ Saturn17:50 – 19:09
- 3♃︎ Jupiter19:09 – 20:29
- 4♂︎ Mars20:29 – 21:48
- 5☉︎ Sun21:48 – 23:07
- 6♀︎ Venus23:07 – 00:27
- 7☿︎ Mercury00:27 – 01:46
- 8☽︎ Moon01:46 – 03:05
- 9♄︎ Saturn03:05 – 04:25
- 10♃︎ Jupiter04:25 – 05:44
- 11♂︎ Mars05:44 – 07:04
- 12☉︎ Sun07:04 – 08:23
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Thursday, 4 December 2025, the Sun rises at 08:22 and sets at 16:31: the day lasts 8h 09m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:23, lasts 15h 52m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Jupiter, from 08:22 to 09:02: 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.