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, 18 April 2025: day of Venus
- Sunrise
- 06:40
- Sunset
- 20:41
- Next sunrise
- 06:38
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Europe/Brussels).
Day
- 1♀︎ Venus06:40 – 07:50
- 2☿︎ Mercury07:50 – 09:00
- 3☽︎ Moon09:00 – 10:10
- 4♄︎ Saturn10:10 – 11:20
- 5♃︎ Jupiter11:20 – 12:30
- 6♂︎ Mars12:30 – 13:41
- 7☉︎ Sun13:41 – 14:51
- 8♀︎ Venus14:51 – 16:01
- 9☿︎ Mercury16:01 – 17:11
- 10☽︎ Moon17:11 – 18:21
- 11♄︎ Saturn18:21 – 19:31
- 12♃︎ Jupiter19:31 – 20:41
Night
- 1♂︎ Mars20:41 – 21:31
- 2☉︎ Sun21:31 – 22:21
- 3♀︎ Venus22:21 – 23:10
- 4☿︎ Mercury23:10 – 00:00
- 5☽︎ Moon00:00 – 00:50
- 6♄︎ Saturn00:50 – 01:40
- 7♃︎ Jupiter01:40 – 02:29
- 8♂︎ Mars02:29 – 03:19
- 9☉︎ Sun03:19 – 04:09
- 10♀︎ Venus04:09 – 04:58
- 11☿︎ Mercury04:58 – 05:48
- 12☽︎ Moon05:48 – 06:38
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Friday, 18 April 2025, the Sun rises at 06:40 and sets at 20:41: the day lasts 14h 02m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 06:38, lasts 9h 56m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Venus, from 06:40 to 07:50: 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.