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, 10 August 2026: day of the Moon
- Sunrise
- 06:20
- Sunset
- 21:11
- Next sunrise
- 06:22
A day hour lasts 1h 14m; a night hour, 46 min. Local time (Europe/Brussels).
Day
- 1☽︎ Moon06:20 – 07:34
- 2♄︎ Saturn07:34 – 08:49
- 3♃︎ Jupiter08:49 – 10:03
- 4♂︎ Mars10:03 – 11:17
- 5☉︎ Sun11:17 – 12:31
- 6♀︎ Venus12:31 – 13:46
- 7☿︎ Mercury13:46 – 15:00
- 8☽︎ Moon15:00 – 16:14
- 9♄︎ Saturn16:14 – 17:28
- 10♃︎ Jupiter17:28 – 18:42
- 11♂︎ Mars18:42 – 19:57
- 12☉︎ Sun19:57 – 21:11
Night
- 1♀︎ Venus21:11 – 21:57
- 2☿︎ Mercury21:57 – 22:43
- 3☽︎ Moon22:43 – 23:29
- 4♄︎ Saturn23:29 – 00:15
- 5♃︎ Jupiter00:15 – 01:00
- 6♂︎ Mars01:00 – 01:46
- 7☉︎ Sun01:46 – 02:32
- 8♀︎ Venus02:32 – 03:18
- 9☿︎ Mercury03:18 – 04:04
- 10☽︎ Moon04:04 – 04:50
- 11♄︎ Saturn04:50 – 05:36
- 12♃︎ Jupiter05:36 – 06:22
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Monday, 10 August 2026, the Sun rises at 06:20 and sets at 21:11: the day lasts 14h 51m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 06:22, lasts 9h 11m: twelve night hours of 46 min.
Which planet rules the first hour that day?
The Moon, from 06:20 to 07:34: 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.