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 Saturday, 12 December 2026: day of Saturn
- Sunrise
- 09:30
- Sunset
- 17:29
- Next sunrise
- 09:31
A day hour lasts 40 min; a night hour, 1h 20m. Local time (America/Edmonton).
Day
- 1♄︎ Saturn09:30 – 10:10
- 2♃︎ Jupiter10:10 – 10:50
- 3♂︎ Mars10:50 – 11:30
- 4☉︎ Sun11:30 – 12:10
- 5♀︎ Venus12:10 – 12:50
- 6☿︎ Mercury12:50 – 13:30
- 7☽︎ Moon13:30 – 14:10
- 8♄︎ Saturn14:10 – 14:49
- 9♃︎ Jupiter14:49 – 15:29
- 10♂︎ Mars15:29 – 16:09
- 11☉︎ Sun16:09 – 16:49
- 12♀︎ Venus16:49 – 17:29
Night
- 1☿︎ Mercury17:29 – 18:49
- 2☽︎ Moon18:49 – 20:09
- 3♄︎ Saturn20:09 – 21:30
- 4♃︎ Jupiter21:30 – 22:50
- 5♂︎ Mars22:50 – 00:10
- 6☉︎ Sun00:10 – 01:30
- 7♀︎ Venus01:30 – 02:50
- 8☿︎ Mercury02:50 – 04:10
- 9☽︎ Moon04:10 – 05:31
- 10♄︎ Saturn05:31 – 06:51
- 11♃︎ Jupiter06:51 – 08:11
- 12♂︎ Mars08:11 – 09:31
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Saturday, 12 December 2026, the Sun rises at 09:30 and sets at 17:29: the day lasts 7h 59m, that is twelve day hours of 40 min. The night, until the next sunrise at 09:31, lasts 16h 02m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Saturn, from 09:30 to 10:10: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.