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 Thursday, 22 October 2026: day of Jupiter
- Sunrise
- 08:15
- Sunset
- 18:34
- Next sunrise
- 08:17
A day hour lasts 52 min; a night hour, 1h 09m. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter08:15 – 09:07
- 2♂︎ Mars09:07 – 09:58
- 3☉︎ Sun09:58 – 10:50
- 4♀︎ Venus10:50 – 11:42
- 5☿︎ Mercury11:42 – 12:33
- 6☽︎ Moon12:33 – 13:25
- 7♄︎ Saturn13:25 – 14:16
- 8♃︎ Jupiter14:16 – 15:08
- 9♂︎ Mars15:08 – 15:59
- 10☉︎ Sun15:59 – 16:51
- 11♀︎ Venus16:51 – 17:43
- 12☿︎ Mercury17:43 – 18:34
Night
- 1☽︎ Moon18:34 – 19:43
- 2♄︎ Saturn19:43 – 20:51
- 3♃︎ Jupiter20:51 – 22:00
- 4♂︎ Mars22:00 – 23:08
- 5☉︎ Sun23:08 – 00:17
- 6♀︎ Venus00:17 – 01:26
- 7☿︎ Mercury01:26 – 02:34
- 8☽︎ Moon02:34 – 03:43
- 9♄︎ Saturn03:43 – 04:51
- 10♃︎ Jupiter04:51 – 06:00
- 11♂︎ Mars06:00 – 07:08
- 12☉︎ Sun07:08 – 08:17
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Thursday, 22 October 2026, the Sun rises at 08:15 and sets at 18:34: the day lasts 10h 19m, that is twelve day hours of 52 min. The night, until the next sunrise at 08:17, lasts 13h 43m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
Jupiter, from 08:15 to 09:07: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.