Planetary hours
in Namur.
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, 10 December 2025: day of Mercury
- Sunrise
- 08:30
- Sunset
- 16:36
- Next sunrise
- 08:31
A day hour lasts 41 min; a night hour, 1h 20m. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury08:30 – 09:10
- 2☽︎ Moon09:10 – 09:51
- 3♄︎ Saturn09:51 – 10:31
- 4♃︎ Jupiter10:31 – 11:12
- 5♂︎ Mars11:12 – 11:52
- 6☉︎ Sun11:52 – 12:33
- 7♀︎ Venus12:33 – 13:13
- 8☿︎ Mercury13:13 – 13:54
- 9☽︎ Moon13:54 – 14:34
- 10♄︎ Saturn14:34 – 15:15
- 11♃︎ Jupiter15:15 – 15:55
- 12♂︎ Mars15:55 – 16:36
Night
- 1☉︎ Sun16:36 – 17:56
- 2♀︎ Venus17:56 – 19:15
- 3☿︎ Mercury19:15 – 20:35
- 4☽︎ Moon20:35 – 21:54
- 5♄︎ Saturn21:54 – 23:14
- 6♃︎ Jupiter23:14 – 00:33
- 7♂︎ Mars00:33 – 01:53
- 8☉︎ Sun01:53 – 03:12
- 9♀︎ Venus03:12 – 04:32
- 10☿︎ Mercury04:32 – 05:52
- 11☽︎ Moon05:52 – 07:11
- 12♄︎ Saturn07:11 – 08:31
Other cities · Belgium
Questions
How are the planetary hours calculated in Namur?
On Wednesday, 10 December 2025, the Sun rises at 08:30 and sets at 16:36: the day lasts 8h 06m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:31, lasts 15h 55m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Mercury, 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: 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.