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 Wednesday, 20 May 2026: day of Mercury
- Sunrise
- 05:39
- Sunset
- 21:27
- Next sunrise
- 05:38
A day hour lasts 1h 19m; a night hour, 41 min. Local time (America/Edmonton).
Day
- 1☿︎ Mercury05:39 – 06:58
- 2☽︎ Moon06:58 – 08:17
- 3♄︎ Saturn08:17 – 09:36
- 4♃︎ Jupiter09:36 – 10:55
- 5♂︎ Mars10:55 – 12:14
- 6☉︎ Sun12:14 – 13:33
- 7♀︎ Venus13:33 – 14:52
- 8☿︎ Mercury14:52 – 16:11
- 9☽︎ Moon16:11 – 17:30
- 10♄︎ Saturn17:30 – 18:49
- 11♃︎ Jupiter18:49 – 20:08
- 12♂︎ Mars20:08 – 21:27
Night
- 1☉︎ Sun21:27 – 22:08
- 2♀︎ Venus22:08 – 22:49
- 3☿︎ Mercury22:49 – 23:30
- 4☽︎ Moon23:30 – 00:10
- 5♄︎ Saturn00:10 – 00:51
- 6♃︎ Jupiter00:51 – 01:32
- 7♂︎ Mars01:32 – 02:13
- 8☉︎ Sun02:13 – 02:54
- 9♀︎ Venus02:54 – 03:35
- 10☿︎ Mercury03:35 – 04:16
- 11☽︎ Moon04:16 – 04:57
- 12♄︎ Saturn04:57 – 05:38
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Wednesday, 20 May 2026, the Sun rises at 05:39 and sets at 21:27: the day lasts 15h 48m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:38, lasts 8h 11m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Mercury, from 05:39 to 06:58: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.