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 Friday, 25 September 2026: day of Venus
- Sunrise
- 07:31
- Sunset
- 19:32
- Next sunrise
- 07:33
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Europe/Brussels).
Day
- 1♀︎ Venus07:31 – 08:31
- 2☿︎ Mercury08:31 – 09:32
- 3☽︎ Moon09:32 – 10:32
- 4♄︎ Saturn10:32 – 11:32
- 5♃︎ Jupiter11:32 – 12:32
- 6♂︎ Mars12:32 – 13:32
- 7☉︎ Sun13:32 – 14:32
- 8♀︎ Venus14:32 – 15:32
- 9☿︎ Mercury15:32 – 16:32
- 10☽︎ Moon16:32 – 17:32
- 11♄︎ Saturn17:32 – 18:32
- 12♃︎ Jupiter18:32 – 19:32
Night
- 1♂︎ Mars19:32 – 20:32
- 2☉︎ Sun20:32 – 21:32
- 3♀︎ Venus21:32 – 22:33
- 4☿︎ Mercury22:33 – 23:33
- 5☽︎ Moon23:33 – 00:33
- 6♄︎ Saturn00:33 – 01:33
- 7♃︎ Jupiter01:33 – 02:33
- 8♂︎ Mars02:33 – 03:33
- 9☉︎ Sun03:33 – 04:33
- 10♀︎ Venus04:33 – 05:33
- 11☿︎ Mercury05:33 – 06:33
- 12☽︎ Moon06:33 – 07:33
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Friday, 25 September 2026, the Sun rises at 07:31 and sets at 19:32: the day lasts 12h 01m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 07:33, lasts 12h 01m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Venus, from 07:31 to 08:31: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.