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 Thursday, 28 August 2025: day of Jupiter
- Sunrise
- 06:48
- Sunset
- 20:34
- Next sunrise
- 06:50
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter06:48 – 07:57
- 2♂︎ Mars07:57 – 09:06
- 3☉︎ Sun09:06 – 10:15
- 4♀︎ Venus10:15 – 11:24
- 5☿︎ Mercury11:24 – 12:32
- 6☽︎ Moon12:32 – 13:41
- 7♄︎ Saturn13:41 – 14:50
- 8♃︎ Jupiter14:50 – 15:59
- 9♂︎ Mars15:59 – 17:08
- 10☉︎ Sun17:08 – 18:17
- 11♀︎ Venus18:17 – 19:26
- 12☿︎ Mercury19:26 – 20:34
Night
- 1☽︎ Moon20:34 – 21:26
- 2♄︎ Saturn21:26 – 22:17
- 3♃︎ Jupiter22:17 – 23:08
- 4♂︎ Mars23:08 – 00:00
- 5☉︎ Sun00:00 – 00:51
- 6♀︎ Venus00:51 – 01:42
- 7☿︎ Mercury01:42 – 02:33
- 8☽︎ Moon02:33 – 03:25
- 9♄︎ Saturn03:25 – 04:16
- 10♃︎ Jupiter04:16 – 05:07
- 11♂︎ Mars05:07 – 05:59
- 12☉︎ Sun05:59 – 06:50
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Thursday, 28 August 2025, the Sun rises at 06:48 and sets at 20:34: the day lasts 13h 46m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:50, lasts 10h 16m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Jupiter, from 06:48 to 07:57: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.