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, 20 April 2026: day of the Moon
- Sunrise
- 06:36
- Sunset
- 20:44
- Next sunrise
- 06:34
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Brussels).
Day
- 1☽︎ Moon06:36 – 07:47
- 2♄︎ Saturn07:47 – 08:57
- 3♃︎ Jupiter08:57 – 10:08
- 4♂︎ Mars10:08 – 11:19
- 5☉︎ Sun11:19 – 12:29
- 6♀︎ Venus12:29 – 13:40
- 7☿︎ Mercury13:40 – 14:51
- 8☽︎ Moon14:51 – 16:02
- 9♄︎ Saturn16:02 – 17:12
- 10♃︎ Jupiter17:12 – 18:23
- 11♂︎ Mars18:23 – 19:34
- 12☉︎ Sun19:34 – 20:44
Night
- 1♀︎ Venus20:44 – 21:33
- 2☿︎ Mercury21:33 – 22:23
- 3☽︎ Moon22:23 – 23:12
- 4♄︎ Saturn23:12 – 00:01
- 5♃︎ Jupiter00:01 – 00:50
- 6♂︎ Mars00:50 – 01:39
- 7☉︎ Sun01:39 – 02:28
- 8♀︎ Venus02:28 – 03:17
- 9☿︎ Mercury03:17 – 04:07
- 10☽︎ Moon04:07 – 04:56
- 11♄︎ Saturn04:56 – 05:45
- 12♃︎ Jupiter05:45 – 06:34
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Monday, 20 April 2026, the Sun rises at 06:36 and sets at 20:44: the day lasts 14h 08m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 06:34, lasts 9h 50m: twelve night hours of 49 min.
Which planet rules the first hour that day?
The Moon, from 06:36 to 07:47: 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.