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, 21 October 2026: day of Mercury
- Sunrise
- 08:10
- Sunset
- 18:30
- Next sunrise
- 08:11
A day hour lasts 52 min; a night hour, 1h 08m. Local time (America/Edmonton).
Day
- 1☿︎ Mercury08:10 – 09:01
- 2☽︎ Moon09:01 – 09:53
- 3♄︎ Saturn09:53 – 10:45
- 4♃︎ Jupiter10:45 – 11:37
- 5♂︎ Mars11:37 – 12:28
- 6☉︎ Sun12:28 – 13:20
- 7♀︎ Venus13:20 – 14:12
- 8☿︎ Mercury14:12 – 15:03
- 9☽︎ Moon15:03 – 15:55
- 10♄︎ Saturn15:55 – 16:47
- 11♃︎ Jupiter16:47 – 17:39
- 12♂︎ Mars17:39 – 18:30
Night
- 1☉︎ Sun18:30 – 19:39
- 2♀︎ Venus19:39 – 20:47
- 3☿︎ Mercury20:47 – 21:56
- 4☽︎ Moon21:56 – 23:04
- 5♄︎ Saturn23:04 – 00:12
- 6♃︎ Jupiter00:12 – 01:21
- 7♂︎ Mars01:21 – 02:29
- 8☉︎ Sun02:29 – 03:38
- 9♀︎ Venus03:38 – 04:46
- 10☿︎ Mercury04:46 – 05:55
- 11☽︎ Moon05:55 – 07:03
- 12♄︎ Saturn07:03 – 08:11
Other cities · Canada
Questions
How are the planetary hours calculated in Calgary?
On Wednesday, 21 October 2026, the Sun rises at 08:10 and sets at 18:30: the day lasts 10h 21m, that is twelve day hours of 52 min. The night, until the next sunrise at 08:11, lasts 13h 41m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mercury, from 08:10 to 09:01: 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.