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, 30 May 2026: day of Saturn
- Sunrise
- 05:34
- Sunset
- 21:43
- Next sunrise
- 05:33
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/Brussels).
Day
- 1♄︎ Saturn05:34 – 06:55
- 2♃︎ Jupiter06:55 – 08:16
- 3♂︎ Mars08:16 – 09:36
- 4☉︎ Sun09:36 – 10:57
- 5♀︎ Venus10:57 – 12:18
- 6☿︎ Mercury12:18 – 13:39
- 7☽︎ Moon13:39 – 14:59
- 8♄︎ Saturn14:59 – 16:20
- 9♃︎ Jupiter16:20 – 17:41
- 10♂︎ Mars17:41 – 19:02
- 11☉︎ Sun19:02 – 20:22
- 12♀︎ Venus20:22 – 21:43
Night
- 1☿︎ Mercury21:43 – 22:22
- 2☽︎ Moon22:22 – 23:01
- 3♄︎ Saturn23:01 – 23:41
- 4♃︎ Jupiter23:41 – 00:20
- 5♂︎ Mars00:20 – 00:59
- 6☉︎ Sun00:59 – 01:38
- 7♀︎ Venus01:38 – 02:17
- 8☿︎ Mercury02:17 – 02:57
- 9☽︎ Moon02:57 – 03:36
- 10♄︎ Saturn03:36 – 04:15
- 11♃︎ Jupiter04:15 – 04:54
- 12♂︎ Mars04:54 – 05:33
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Saturday, 30 May 2026, the Sun rises at 05:34 and sets at 21:43: the day lasts 16h 09m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 05:33, lasts 7h 50m: twelve night hours of 39 min.
Which planet rules the first hour that day?
Saturn, from 05:34 to 06:55: 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.