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 Sunday, 20 September 2026: day of the Sun
- Sunrise
- 07:24
- Sunset
- 19:44
- Next sunrise
- 07:25
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Brussels).
Day
- 1☉︎ Sun07:24 – 08:25
- 2♀︎ Venus08:25 – 09:27
- 3☿︎ Mercury09:27 – 10:29
- 4☽︎ Moon10:29 – 11:30
- 5♄︎ Saturn11:30 – 12:32
- 6♃︎ Jupiter12:32 – 13:34
- 7♂︎ Mars13:34 – 14:35
- 8☉︎ Sun14:35 – 15:37
- 9♀︎ Venus15:37 – 16:39
- 10☿︎ Mercury16:39 – 17:40
- 11☽︎ Moon17:40 – 18:42
- 12♄︎ Saturn18:42 – 19:44
Night
- 1♃︎ Jupiter19:44 – 20:42
- 2♂︎ Mars20:42 – 21:41
- 3☉︎ Sun21:41 – 22:39
- 4♀︎ Venus22:39 – 23:37
- 5☿︎ Mercury23:37 – 00:36
- 6☽︎ Moon00:36 – 01:34
- 7♄︎ Saturn01:34 – 02:33
- 8♃︎ Jupiter02:33 – 03:31
- 9♂︎ Mars03:31 – 04:30
- 10☉︎ Sun04:30 – 05:28
- 11♀︎ Venus05:28 – 06:27
- 12☿︎ Mercury06:27 – 07:25
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Sunday, 20 September 2026, the Sun rises at 07:24 and sets at 19:44: the day lasts 12h 20m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:25, lasts 11h 41m: twelve night hours of 58 min.
Which planet rules the first hour that day?
The Sun, from 07:24 to 08:25: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.