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 Monday, 7 September 2026: day of the Moon
- Sunrise
- 07:03
- Sunset
- 20:13
- Next sunrise
- 07:05
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/Brussels).
Day
- 1☽︎ Moon07:03 – 08:09
- 2♄︎ Saturn08:09 – 09:15
- 3♃︎ Jupiter09:15 – 10:21
- 4♂︎ Mars10:21 – 11:27
- 5☉︎ Sun11:27 – 12:32
- 6♀︎ Venus12:32 – 13:38
- 7☿︎ Mercury13:38 – 14:44
- 8☽︎ Moon14:44 – 15:50
- 9♄︎ Saturn15:50 – 16:56
- 10♃︎ Jupiter16:56 – 18:01
- 11♂︎ Mars18:01 – 19:07
- 12☉︎ Sun19:07 – 20:13
Night
- 1♀︎ Venus20:13 – 21:07
- 2☿︎ Mercury21:07 – 22:02
- 3☽︎ Moon22:02 – 22:56
- 4♄︎ Saturn22:56 – 23:50
- 5♃︎ Jupiter23:50 – 00:45
- 6♂︎ Mars00:45 – 01:39
- 7☉︎ Sun01:39 – 02:33
- 8♀︎ Venus02:33 – 03:28
- 9☿︎ Mercury03:28 – 04:22
- 10☽︎ Moon04:22 – 05:16
- 11♄︎ Saturn05:16 – 06:11
- 12♃︎ Jupiter06:11 – 07:05
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Monday, 7 September 2026, the Sun rises at 07:03 and sets at 20:13: the day lasts 13h 10m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 07:05, lasts 10h 52m: twelve night hours of 54 min.
Which planet rules the first hour that day?
The Moon, from 07:03 to 08:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.