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, 4 June 2026: day of Jupiter
- Sunrise
- 05:30
- Sunset
- 21:48
- Next sunrise
- 05:30
A day hour lasts 1h 21m; a night hour, 38 min. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter05:30 – 06:52
- 2♂︎ Mars06:52 – 08:13
- 3☉︎ Sun08:13 – 09:35
- 4♀︎ Venus09:35 – 10:56
- 5☿︎ Mercury10:56 – 12:18
- 6☽︎ Moon12:18 – 13:39
- 7♄︎ Saturn13:39 – 15:01
- 8♃︎ Jupiter15:01 – 16:22
- 9♂︎ Mars16:22 – 17:44
- 10☉︎ Sun17:44 – 19:05
- 11♀︎ Venus19:05 – 20:27
- 12☿︎ Mercury20:27 – 21:48
Night
- 1☽︎ Moon21:48 – 22:27
- 2♄︎ Saturn22:27 – 23:05
- 3♃︎ Jupiter23:05 – 23:44
- 4♂︎ Mars23:44 – 00:22
- 5☉︎ Sun00:22 – 01:01
- 6♀︎ Venus01:01 – 01:39
- 7☿︎ Mercury01:39 – 02:17
- 8☽︎ Moon02:17 – 02:56
- 9♄︎ Saturn02:56 – 03:34
- 10♃︎ Jupiter03:34 – 04:13
- 11♂︎ Mars04:13 – 04:51
- 12☉︎ Sun04:51 – 05:30
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Thursday, 4 June 2026, the Sun rises at 05:30 and sets at 21:48: the day lasts 16h 18m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 05:30, lasts 7h 41m: twelve night hours of 38 min.
Which planet rules the first hour that day?
Jupiter, from 05:30 to 06:52: 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.