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, 5 September 2026: day of Saturn
- Sunrise
- 07:00
- Sunset
- 20:17
- Next sunrise
- 07:02
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/Brussels).
Day
- 1♄︎ Saturn07:00 – 08:07
- 2♃︎ Jupiter08:07 – 09:13
- 3♂︎ Mars09:13 – 10:20
- 4☉︎ Sun10:20 – 11:26
- 5♀︎ Venus11:26 – 12:32
- 6☿︎ Mercury12:32 – 13:39
- 7☽︎ Moon13:39 – 14:45
- 8♄︎ Saturn14:45 – 15:52
- 9♃︎ Jupiter15:52 – 16:58
- 10♂︎ Mars16:58 – 18:05
- 11☉︎ Sun18:05 – 19:11
- 12♀︎ Venus19:11 – 20:17
Night
- 1☿︎ Mercury20:17 – 21:11
- 2☽︎ Moon21:11 – 22:05
- 3♄︎ Saturn22:05 – 22:59
- 4♃︎ Jupiter22:59 – 23:52
- 5♂︎ Mars23:52 – 00:46
- 6☉︎ Sun00:46 – 01:40
- 7♀︎ Venus01:40 – 02:33
- 8☿︎ Mercury02:33 – 03:27
- 9☽︎ Moon03:27 – 04:21
- 10♄︎ Saturn04:21 – 05:14
- 11♃︎ Jupiter05:14 – 06:08
- 12♂︎ Mars06:08 – 07:02
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Saturday, 5 September 2026, the Sun rises at 07:00 and sets at 20:17: the day lasts 13h 17m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 07:02, lasts 10h 44m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Saturn, from 07:00 to 08:07: 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.