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 Tuesday, 13 October 2026: day of Mars
- Sunrise
- 08:00
- Sunset
- 18:53
- Next sunrise
- 08:02
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Europe/Brussels).
Day
- 1♂︎ Mars08:00 – 08:55
- 2☉︎ Sun08:55 – 09:49
- 3♀︎ Venus09:49 – 10:43
- 4☿︎ Mercury10:43 – 11:38
- 5☽︎ Moon11:38 – 12:32
- 6♄︎ Saturn12:32 – 13:27
- 7♃︎ Jupiter13:27 – 14:21
- 8♂︎ Mars14:21 – 15:15
- 9☉︎ Sun15:15 – 16:10
- 10♀︎ Venus16:10 – 17:04
- 11☿︎ Mercury17:04 – 17:58
- 12☽︎ Moon17:58 – 18:53
Night
- 1♄︎ Saturn18:53 – 19:58
- 2♃︎ Jupiter19:58 – 21:04
- 3♂︎ Mars21:04 – 22:10
- 4☉︎ Sun22:10 – 23:16
- 5♀︎ Venus23:16 – 00:22
- 6☿︎ Mercury00:22 – 01:27
- 7☽︎ Moon01:27 – 02:33
- 8♄︎ Saturn02:33 – 03:39
- 9♃︎ Jupiter03:39 – 04:45
- 10♂︎ Mars04:45 – 05:50
- 11☉︎ Sun05:50 – 06:56
- 12♀︎ Venus06:56 – 08:02
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Tuesday, 13 October 2026, the Sun rises at 08:00 and sets at 18:53: the day lasts 10h 52m, that is twelve day hours of 54 min. The night, until the next sunrise at 08:02, lasts 13h 09m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Mars, from 08:00 to 08:55: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.