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 Wednesday, 2 December 2026: day of Mercury
- Sunrise
- 08:22
- Sunset
- 16:37
- Next sunrise
- 08:24
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury08:22 – 09:04
- 2☽︎ Moon09:04 – 09:45
- 3♄︎ Saturn09:45 – 10:26
- 4♃︎ Jupiter10:26 – 11:07
- 5♂︎ Mars11:07 – 11:49
- 6☉︎ Sun11:49 – 12:30
- 7♀︎ Venus12:30 – 13:11
- 8☿︎ Mercury13:11 – 13:52
- 9☽︎ Moon13:52 – 14:34
- 10♄︎ Saturn14:34 – 15:15
- 11♃︎ Jupiter15:15 – 15:56
- 12♂︎ Mars15:56 – 16:37
Night
- 1☉︎ Sun16:37 – 17:56
- 2♀︎ Venus17:56 – 19:15
- 3☿︎ Mercury19:15 – 20:34
- 4☽︎ Moon20:34 – 21:53
- 5♄︎ Saturn21:53 – 23:12
- 6♃︎ Jupiter23:12 – 00:31
- 7♂︎ Mars00:31 – 01:49
- 8☉︎ Sun01:49 – 03:08
- 9♀︎ Venus03:08 – 04:27
- 10☿︎ Mercury04:27 – 05:46
- 11☽︎ Moon05:46 – 07:05
- 12♄︎ Saturn07:05 – 08:24
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Wednesday, 2 December 2026, the Sun rises at 08:22 and sets at 16:37: the day lasts 8h 15m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:24, lasts 15h 46m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mercury, from 08:22 to 09:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.