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, 8 August 2026: day of Saturn
- Sunrise
- 06:17
- Sunset
- 21:15
- Next sunrise
- 06:19
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Brussels).
Day
- 1♄︎ Saturn06:17 – 07:32
- 2♃︎ Jupiter07:32 – 08:47
- 3♂︎ Mars08:47 – 10:01
- 4☉︎ Sun10:01 – 11:16
- 5♀︎ Venus11:16 – 12:31
- 6☿︎ Mercury12:31 – 13:46
- 7☽︎ Moon13:46 – 15:01
- 8♄︎ Saturn15:01 – 16:15
- 9♃︎ Jupiter16:15 – 17:30
- 10♂︎ Mars17:30 – 18:45
- 11☉︎ Sun18:45 – 20:00
- 12♀︎ Venus20:00 – 21:15
Night
- 1☿︎ Mercury21:15 – 22:00
- 2☽︎ Moon22:00 – 22:45
- 3♄︎ Saturn22:45 – 23:31
- 4♃︎ Jupiter23:31 – 00:16
- 5♂︎ Mars00:16 – 01:01
- 6☉︎ Sun01:01 – 01:47
- 7♀︎ Venus01:47 – 02:32
- 8☿︎ Mercury02:32 – 03:17
- 9☽︎ Moon03:17 – 04:03
- 10♄︎ Saturn04:03 – 04:48
- 11♃︎ Jupiter04:48 – 05:33
- 12♂︎ Mars05:33 – 06:19
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Saturday, 8 August 2026, the Sun rises at 06:17 and sets at 21:15: the day lasts 14h 57m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 06:19, lasts 9h 04m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Saturn, from 06:17 to 07:32: 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.