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 Tuesday, 9 December 2025: day of Mars
- Sunrise
- 08:29
- Sunset
- 16:36
- Next sunrise
- 08:30
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Brussels).
Day
- 1♂︎ Mars08:29 – 09:09
- 2☉︎ Sun09:09 – 09:50
- 3♀︎ Venus09:50 – 10:30
- 4☿︎ Mercury10:30 – 11:11
- 5☽︎ Moon11:11 – 11:52
- 6♄︎ Saturn11:52 – 12:32
- 7♃︎ Jupiter12:32 – 13:13
- 8♂︎ Mars13:13 – 13:54
- 9☉︎ Sun13:54 – 14:34
- 10♀︎ Venus14:34 – 15:15
- 11☿︎ Mercury15:15 – 15:55
- 12☽︎ Moon15:55 – 16:36
Night
- 1♄︎ Saturn16:36 – 17:56
- 2♃︎ Jupiter17:56 – 19:15
- 3♂︎ Mars19:15 – 20:34
- 4☉︎ Sun20:34 – 21:54
- 5♀︎ Venus21:54 – 23:13
- 6☿︎ Mercury23:13 – 00:33
- 7☽︎ Moon00:33 – 01:52
- 8♄︎ Saturn01:52 – 03:12
- 9♃︎ Jupiter03:12 – 04:31
- 10♂︎ Mars04:31 – 05:51
- 11☉︎ Sun05:51 – 07:10
- 12♀︎ Venus07:10 – 08:30
Other cities · Belgium
Questions
How are the planetary hours calculated in Namur?
On Tuesday, 9 December 2025, the Sun rises at 08:29 and sets at 16:36: the day lasts 8h 07m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:30, lasts 15h 54m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mars, from 08:29 to 09:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.