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, 22 January 2025: day of Mercury
- Sunrise
- 08:30
- Sunset
- 17:15
- Next sunrise
- 08:29
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury08:30 – 09:14
- 2☽︎ Moon09:14 – 09:57
- 3♄︎ Saturn09:57 – 10:41
- 4♃︎ Jupiter10:41 – 11:25
- 5♂︎ Mars11:25 – 12:09
- 6☉︎ Sun12:09 – 12:53
- 7♀︎ Venus12:53 – 13:36
- 8☿︎ Mercury13:36 – 14:20
- 9☽︎ Moon14:20 – 15:04
- 10♄︎ Saturn15:04 – 15:48
- 11♃︎ Jupiter15:48 – 16:31
- 12♂︎ Mars16:31 – 17:15
Night
- 1☉︎ Sun17:15 – 18:31
- 2♀︎ Venus18:31 – 19:48
- 3☿︎ Mercury19:48 – 21:04
- 4☽︎ Moon21:04 – 22:20
- 5♄︎ Saturn22:20 – 23:36
- 6♃︎ Jupiter23:36 – 00:52
- 7♂︎ Mars00:52 – 02:08
- 8☉︎ Sun02:08 – 03:24
- 9♀︎ Venus03:24 – 04:40
- 10☿︎ Mercury04:40 – 05:57
- 11☽︎ Moon05:57 – 07:13
- 12♄︎ Saturn07:13 – 08:29
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Wednesday, 22 January 2025, the Sun rises at 08:30 and sets at 17:15: the day lasts 8h 45m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:29, lasts 15h 13m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Mercury, from 08:30 to 09:14: 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.