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, 17 May 2025: day of Saturn
- Sunrise
- 05:42
- Sunset
- 21:23
- Next sunrise
- 05:41
A day hour lasts 1h 18m; a night hour, 41 min. Local time (America/Edmonton).
Day
- 1♄︎ Saturn05:42 – 07:01
- 2♃︎ Jupiter07:01 – 08:19
- 3♂︎ Mars08:19 – 09:38
- 4☉︎ Sun09:38 – 10:56
- 5♀︎ Venus10:56 – 12:14
- 6☿︎ Mercury12:14 – 13:33
- 7☽︎ Moon13:33 – 14:51
- 8♄︎ Saturn14:51 – 16:10
- 9♃︎ Jupiter16:10 – 17:28
- 10♂︎ Mars17:28 – 18:46
- 11☉︎ Sun18:46 – 20:05
- 12♀︎ Venus20:05 – 21:23
Night
- 1☿︎ Mercury21:23 – 22:05
- 2☽︎ Moon22:05 – 22:46
- 3♄︎ Saturn22:46 – 23:28
- 4♃︎ Jupiter23:28 – 00:09
- 5♂︎ Mars00:09 – 00:51
- 6☉︎ Sun00:51 – 01:32
- 7♀︎ Venus01:32 – 02:14
- 8☿︎ Mercury02:14 – 02:55
- 9☽︎ Moon02:55 – 03:37
- 10♄︎ Saturn03:37 – 04:18
- 11♃︎ Jupiter04:18 – 05:00
- 12♂︎ Mars05:00 – 05:41
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Saturday, 17 May 2025, the Sun rises at 05:42 and sets at 21:23: the day lasts 15h 41m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:41, lasts 8h 18m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Saturn, from 05:42 to 07:01: 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.