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 Friday, 3 October 2025: day of Venus
- Sunrise
- 07:44
- Sunset
- 19:14
- Next sunrise
- 07:46
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Europe/Brussels).
Day
- 1♀︎ Venus07:44 – 08:42
- 2☿︎ Mercury08:42 – 09:39
- 3☽︎ Moon09:39 – 10:37
- 4♄︎ Saturn10:37 – 11:34
- 5♃︎ Jupiter11:34 – 12:32
- 6♂︎ Mars12:32 – 13:29
- 7☉︎ Sun13:29 – 14:27
- 8♀︎ Venus14:27 – 15:24
- 9☿︎ Mercury15:24 – 16:22
- 10☽︎ Moon16:22 – 17:19
- 11♄︎ Saturn17:19 – 18:16
- 12♃︎ Jupiter18:16 – 19:14
Night
- 1♂︎ Mars19:14 – 20:17
- 2☉︎ Sun20:17 – 21:19
- 3♀︎ Venus21:19 – 22:22
- 4☿︎ Mercury22:22 – 23:25
- 5☽︎ Moon23:25 – 00:27
- 6♄︎ Saturn00:27 – 01:30
- 7♃︎ Jupiter01:30 – 02:33
- 8♂︎ Mars02:33 – 03:35
- 9☉︎ Sun03:35 – 04:38
- 10♀︎ Venus04:38 – 05:41
- 11☿︎ Mercury05:41 – 06:43
- 12☽︎ Moon06:43 – 07:46
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Friday, 3 October 2025, the Sun rises at 07:44 and sets at 19:14: the day lasts 11h 29m, that is twelve day hours of 57 min. The night, until the next sunrise at 07:46, lasts 12h 32m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Venus, from 07:44 to 08:42: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.