Planetary hours
in Leuven.
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, 10 May 2025: day of Saturn
- Sunrise
- 05:59
- Sunset
- 21:16
- Next sunrise
- 05:57
A day hour lasts 1h 16m; a night hour, 43 min. Local time (Europe/Brussels).
Day
- 1♄︎ Saturn05:59 – 07:15
- 2♃︎ Jupiter07:15 – 08:32
- 3♂︎ Mars08:32 – 09:48
- 4☉︎ Sun09:48 – 11:05
- 5♀︎ Venus11:05 – 12:21
- 6☿︎ Mercury12:21 – 13:38
- 7☽︎ Moon13:38 – 14:54
- 8♄︎ Saturn14:54 – 16:11
- 9♃︎ Jupiter16:11 – 17:27
- 10♂︎ Mars17:27 – 18:43
- 11☉︎ Sun18:43 – 20:00
- 12♀︎ Venus20:00 – 21:16
Night
- 1☿︎ Mercury21:16 – 22:00
- 2☽︎ Moon22:00 – 22:43
- 3♄︎ Saturn22:43 – 23:27
- 4♃︎ Jupiter23:27 – 00:10
- 5♂︎ Mars00:10 – 00:53
- 6☉︎ Sun00:53 – 01:37
- 7♀︎ Venus01:37 – 02:20
- 8☿︎ Mercury02:20 – 03:04
- 9☽︎ Moon03:04 – 03:47
- 10♄︎ Saturn03:47 – 04:30
- 11♃︎ Jupiter04:30 – 05:14
- 12♂︎ Mars05:14 – 05:57
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Saturday, 10 May 2025, the Sun rises at 05:59 and sets at 21:16: the day lasts 15h 18m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 05:57, lasts 8h 41m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Saturn, from 05:59 to 07:15: 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.