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, 30 July 2026: day of Jupiter
- Sunrise
- 06:04
- Sunset
- 21:30
- Next sunrise
- 06:05
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter06:04 – 07:21
- 2♂︎ Mars07:21 – 08:38
- 3☉︎ Sun08:38 – 09:55
- 4♀︎ Venus09:55 – 11:12
- 5☿︎ Mercury11:12 – 12:30
- 6☽︎ Moon12:30 – 13:47
- 7♄︎ Saturn13:47 – 15:04
- 8♃︎ Jupiter15:04 – 16:21
- 9♂︎ Mars16:21 – 17:38
- 10☉︎ Sun17:38 – 18:55
- 11♀︎ Venus18:55 – 20:12
- 12☿︎ Mercury20:12 – 21:30
Night
- 1☽︎ Moon21:30 – 22:13
- 2♄︎ Saturn22:13 – 22:56
- 3♃︎ Jupiter22:56 – 23:38
- 4♂︎ Mars23:38 – 00:21
- 5☉︎ Sun00:21 – 01:04
- 6♀︎ Venus01:04 – 01:47
- 7☿︎ Mercury01:47 – 02:30
- 8☽︎ Moon02:30 – 03:13
- 9♄︎ Saturn03:13 – 03:56
- 10♃︎ Jupiter03:56 – 04:39
- 11♂︎ Mars04:39 – 05:22
- 12☉︎ Sun05:22 – 06:05
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Thursday, 30 July 2026, the Sun rises at 06:04 and sets at 21:30: the day lasts 15h 26m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:05, lasts 8h 36m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Jupiter, from 06:04 to 07:21: 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.