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, 1 September 2026: day of Mars
- Sunrise
- 06:54
- Sunset
- 20:26
- Next sunrise
- 06:56
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Europe/Brussels).
Day
- 1♂︎ Mars06:54 – 08:02
- 2☉︎ Sun08:02 – 09:09
- 3♀︎ Venus09:09 – 10:17
- 4☿︎ Mercury10:17 – 11:25
- 5☽︎ Moon11:25 – 12:33
- 6♄︎ Saturn12:33 – 13:40
- 7♃︎ Jupiter13:40 – 14:48
- 8♂︎ Mars14:48 – 15:56
- 9☉︎ Sun15:56 – 17:03
- 10♀︎ Venus17:03 – 18:11
- 11☿︎ Mercury18:11 – 19:19
- 12☽︎ Moon19:19 – 20:26
Night
- 1♄︎ Saturn20:26 – 21:19
- 2♃︎ Jupiter21:19 – 22:11
- 3♂︎ Mars22:11 – 23:04
- 4☉︎ Sun23:04 – 23:56
- 5♀︎ Venus23:56 – 00:48
- 6☿︎ Mercury00:48 – 01:41
- 7☽︎ Moon01:41 – 02:33
- 8♄︎ Saturn02:33 – 03:26
- 9♃︎ Jupiter03:26 – 04:18
- 10♂︎ Mars04:18 – 05:11
- 11☉︎ Sun05:11 – 06:03
- 12♀︎ Venus06:03 – 06:56
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Tuesday, 1 September 2026, the Sun rises at 06:54 and sets at 20:26: the day lasts 13h 32m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 06:56, lasts 10h 29m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Mars, from 06:54 to 08:02: 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.