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 Monday, 22 December 2025: day of the Moon
- Sunrise
- 08:38
- Sunset
- 16:32
- Next sunrise
- 08:38
A day hour lasts 40 min; a night hour, 1h 21m. Local time (America/Edmonton).
Day
- 1☽︎ Moon08:38 – 09:17
- 2♄︎ Saturn09:17 – 09:57
- 3♃︎ Jupiter09:57 – 10:36
- 4♂︎ Mars10:36 – 11:16
- 5☉︎ Sun11:16 – 11:55
- 6♀︎ Venus11:55 – 12:35
- 7☿︎ Mercury12:35 – 13:14
- 8☽︎ Moon13:14 – 13:54
- 9♄︎ Saturn13:54 – 14:33
- 10♃︎ Jupiter14:33 – 15:13
- 11♂︎ Mars15:13 – 15:52
- 12☉︎ Sun15:52 – 16:32
Night
- 1♀︎ Venus16:32 – 17:52
- 2☿︎ Mercury17:52 – 19:13
- 3☽︎ Moon19:13 – 20:33
- 4♄︎ Saturn20:33 – 21:54
- 5♃︎ Jupiter21:54 – 23:14
- 6♂︎ Mars23:14 – 00:35
- 7☉︎ Sun00:35 – 01:55
- 8♀︎ Venus01:55 – 03:16
- 9☿︎ Mercury03:16 – 04:36
- 10☽︎ Moon04:36 – 05:57
- 11♄︎ Saturn05:57 – 07:17
- 12♃︎ Jupiter07:17 – 08:38
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Monday, 22 December 2025, the Sun rises at 08:38 and sets at 16:32: the day lasts 7h 54m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:38, lasts 16h 06m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
The Moon, from 08:38 to 09:17: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.