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, 22 August 2026: day of Saturn
- Sunrise
- 06:39
- Sunset
- 20:47
- Next sunrise
- 06:40
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Brussels).
Day
- 1♄︎ Saturn06:39 – 07:49
- 2♃︎ Jupiter07:49 – 09:00
- 3♂︎ Mars09:00 – 10:11
- 4☉︎ Sun10:11 – 11:22
- 5♀︎ Venus11:22 – 12:32
- 6☿︎ Mercury12:32 – 13:43
- 7☽︎ Moon13:43 – 14:54
- 8♄︎ Saturn14:54 – 16:05
- 9♃︎ Jupiter16:05 – 17:15
- 10♂︎ Mars17:15 – 18:26
- 11☉︎ Sun18:26 – 19:37
- 12♀︎ Venus19:37 – 20:47
Night
- 1☿︎ Mercury20:47 – 21:37
- 2☽︎ Moon21:37 – 22:26
- 3♄︎ Saturn22:26 – 23:16
- 4♃︎ Jupiter23:16 – 00:05
- 5♂︎ Mars00:05 – 00:54
- 6☉︎ Sun00:54 – 01:44
- 7♀︎ Venus01:44 – 02:33
- 8☿︎ Mercury02:33 – 03:23
- 9☽︎ Moon03:23 – 04:12
- 10♄︎ Saturn04:12 – 05:01
- 11♃︎ Jupiter05:01 – 05:51
- 12♂︎ Mars05:51 – 06:40
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Saturday, 22 August 2026, the Sun rises at 06:39 and sets at 20:47: the day lasts 14h 09m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 06:40, lasts 9h 53m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Saturn, from 06:39 to 07:49: 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.