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, 11 December 2025: day of Jupiter
- Sunrise
- 08:30
- Sunset
- 16:29
- Next sunrise
- 08:31
A day hour lasts 40 min; a night hour, 1h 20m. Local time (America/Edmonton).
Day
- 1♃︎ Jupiter08:30 – 09:10
- 2♂︎ Mars09:10 – 09:49
- 3☉︎ Sun09:49 – 10:29
- 4♀︎ Venus10:29 – 11:09
- 5☿︎ Mercury11:09 – 11:49
- 6☽︎ Moon11:49 – 12:29
- 7♄︎ Saturn12:29 – 13:09
- 8♃︎ Jupiter13:09 – 13:49
- 9♂︎ Mars13:49 – 14:29
- 10☉︎ Sun14:29 – 15:09
- 11♀︎ Venus15:09 – 15:49
- 12☿︎ Mercury15:49 – 16:29
Night
- 1☽︎ Moon16:29 – 17:49
- 2♄︎ Saturn17:49 – 19:09
- 3♃︎ Jupiter19:09 – 20:29
- 4♂︎ Mars20:29 – 21:49
- 5☉︎ Sun21:49 – 23:10
- 6♀︎ Venus23:10 – 00:30
- 7☿︎ Mercury00:30 – 01:50
- 8☽︎ Moon01:50 – 03:10
- 9♄︎ Saturn03:10 – 04:30
- 10♃︎ Jupiter04:30 – 05:50
- 11♂︎ Mars05:50 – 07:10
- 12☉︎ Sun07:10 – 08:31
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Thursday, 11 December 2025, the Sun rises at 08:30 and sets at 16:29: the day lasts 7h 59m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:31, lasts 16h 02m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Jupiter, from 08:30 to 09:10: 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.