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 Sunday, 20 December 2026: day of the Sun
- Sunrise
- 09:36
- Sunset
- 17:31
- Next sunrise
- 09:37
A day hour lasts 40 min; a night hour, 1h 21m. Local time (America/Edmonton).
Day
- 1☉︎ Sun09:36 – 10:16
- 2♀︎ Venus10:16 – 10:55
- 3☿︎ Mercury10:55 – 11:35
- 4☽︎ Moon11:35 – 12:15
- 5♄︎ Saturn12:15 – 12:54
- 6♃︎ Jupiter12:54 – 13:34
- 7♂︎ Mars13:34 – 14:13
- 8☉︎ Sun14:13 – 14:53
- 9♀︎ Venus14:53 – 15:32
- 10☿︎ Mercury15:32 – 16:12
- 11☽︎ Moon16:12 – 16:51
- 12♄︎ Saturn16:51 – 17:31
Night
- 1♃︎ Jupiter17:31 – 18:51
- 2♂︎ Mars18:51 – 20:12
- 3☉︎ Sun20:12 – 21:32
- 4♀︎ Venus21:32 – 22:53
- 5☿︎ Mercury22:53 – 00:13
- 6☽︎ Moon00:13 – 01:34
- 7♄︎ Saturn01:34 – 02:54
- 8♃︎ Jupiter02:54 – 04:15
- 9♂︎ Mars04:15 – 05:35
- 10☉︎ Sun05:35 – 06:56
- 11♀︎ Venus06:56 – 08:16
- 12☿︎ Mercury08:16 – 09:37
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Sunday, 20 December 2026, the Sun rises at 09:36 and sets at 17:31: the day lasts 7h 54m, that is twelve day hours of 40 min. The night, until the next sunrise at 09:37, lasts 16h 06m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
The Sun, from 09:36 to 10:16: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.