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, 4 September 2026: day of Venus
- Sunrise
- 06:59
- Sunset
- 20:20
- Next sunrise
- 07:00
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Europe/Brussels).
Day
- 1♀︎ Venus06:59 – 08:06
- 2☿︎ Mercury08:06 – 09:12
- 3☽︎ Moon09:12 – 10:19
- 4♄︎ Saturn10:19 – 11:26
- 5♃︎ Jupiter11:26 – 12:32
- 6♂︎ Mars12:32 – 13:39
- 7☉︎ Sun13:39 – 14:46
- 8♀︎ Venus14:46 – 15:53
- 9☿︎ Mercury15:53 – 16:59
- 10☽︎ Moon16:59 – 18:06
- 11♄︎ Saturn18:06 – 19:13
- 12♃︎ Jupiter19:13 – 20:20
Night
- 1♂︎ Mars20:20 – 21:13
- 2☉︎ Sun21:13 – 22:06
- 3♀︎ Venus22:06 – 23:00
- 4☿︎ Mercury23:00 – 23:53
- 5☽︎ Moon23:53 – 00:47
- 6♄︎ Saturn00:47 – 01:40
- 7♃︎ Jupiter01:40 – 02:33
- 8♂︎ Mars02:33 – 03:27
- 9☉︎ Sun03:27 – 04:20
- 10♀︎ Venus04:20 – 05:14
- 11☿︎ Mercury05:14 – 06:07
- 12☽︎ Moon06:07 – 07:00
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Friday, 4 September 2026, the Sun rises at 06:59 and sets at 20:20: the day lasts 13h 21m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 07:00, lasts 10h 41m: twelve night hours of 53 min.
Which planet rules the first hour that day?
Venus, from 06:59 to 08:06: 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.