Planetary hours
in Brugge.
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, 13 December 2025: day of Saturn
- Sunrise
- 08:43
- Sunset
- 16:39
- Next sunrise
- 08:44
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Brussels).
Day
- 1♄︎ Saturn08:43 – 09:22
- 2♃︎ Jupiter09:22 – 10:02
- 3♂︎ Mars10:02 – 10:42
- 4☉︎ Sun10:42 – 11:21
- 5♀︎ Venus11:21 – 12:01
- 6☿︎ Mercury12:01 – 12:41
- 7☽︎ Moon12:41 – 13:21
- 8♄︎ Saturn13:21 – 14:00
- 9♃︎ Jupiter14:00 – 14:40
- 10♂︎ Mars14:40 – 15:20
- 11☉︎ Sun15:20 – 15:59
- 12♀︎ Venus15:59 – 16:39
Night
- 1☿︎ Mercury16:39 – 17:59
- 2☽︎ Moon17:59 – 19:20
- 3♄︎ Saturn19:20 – 20:40
- 4♃︎ Jupiter20:40 – 22:00
- 5♂︎ Mars22:00 – 23:21
- 6☉︎ Sun23:21 – 00:41
- 7♀︎ Venus00:41 – 02:02
- 8☿︎ Mercury02:02 – 03:22
- 9☽︎ Moon03:22 – 04:42
- 10♄︎ Saturn04:42 – 06:03
- 11♃︎ Jupiter06:03 – 07:23
- 12♂︎ Mars07:23 – 08:44
Other cities · Belgium
Questions
How are the planetary hours calculated in Brugge?
On Saturday, 13 December 2025, the Sun rises at 08:43 and sets at 16:39: the day lasts 7h 56m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:44, lasts 16h 05m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Saturn, from 08:43 to 09:22: 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.