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, 3 February 2026: day of Mars
- Sunrise
- 08:14
- Sunset
- 17:36
- Next sunrise
- 08:12
A day hour lasts 47 min; a night hour, 1h 13m. Local time (Europe/Brussels).
Day
- 1♂︎ Mars08:14 – 09:01
- 2☉︎ Sun09:01 – 09:48
- 3♀︎ Venus09:48 – 10:34
- 4☿︎ Mercury10:34 – 11:21
- 5☽︎ Moon11:21 – 12:08
- 6♄︎ Saturn12:08 – 12:55
- 7♃︎ Jupiter12:55 – 13:42
- 8♂︎ Mars13:42 – 14:28
- 9☉︎ Sun14:28 – 15:15
- 10♀︎ Venus15:15 – 16:02
- 11☿︎ Mercury16:02 – 16:49
- 12☽︎ Moon16:49 – 17:36
Night
- 1♄︎ Saturn17:36 – 18:49
- 2♃︎ Jupiter18:49 – 20:02
- 3♂︎ Mars20:02 – 21:15
- 4☉︎ Sun21:15 – 22:28
- 5♀︎ Venus22:28 – 23:41
- 6☿︎ Mercury23:41 – 00:54
- 7☽︎ Moon00:54 – 02:07
- 8♄︎ Saturn02:07 – 03:20
- 9♃︎ Jupiter03:20 – 04:33
- 10♂︎ Mars04:33 – 05:46
- 11☉︎ Sun05:46 – 06:59
- 12♀︎ Venus06:59 – 08:12
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Tuesday, 3 February 2026, the Sun rises at 08:14 and sets at 17:36: the day lasts 9h 22m, that is twelve day hours of 47 min. The night, until the next sunrise at 08:12, lasts 14h 37m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mars, from 08:14 to 09:01: 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.