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, 23 July 2026: day of Jupiter
- Sunrise
- 05:54
- Sunset
- 21:40
- Next sunrise
- 05:55
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter05:54 – 07:13
- 2♂︎ Mars07:13 – 08:32
- 3☉︎ Sun08:32 – 09:50
- 4♀︎ Venus09:50 – 11:09
- 5☿︎ Mercury11:09 – 12:28
- 6☽︎ Moon12:28 – 13:47
- 7♄︎ Saturn13:47 – 15:06
- 8♃︎ Jupiter15:06 – 16:24
- 9♂︎ Mars16:24 – 17:43
- 10☉︎ Sun17:43 – 19:02
- 11♀︎ Venus19:02 – 20:21
- 12☿︎ Mercury20:21 – 21:40
Night
- 1☽︎ Moon21:40 – 22:21
- 2♄︎ Saturn22:21 – 23:02
- 3♃︎ Jupiter23:02 – 23:43
- 4♂︎ Mars23:43 – 00:25
- 5☉︎ Sun00:25 – 01:06
- 6♀︎ Venus01:06 – 01:47
- 7☿︎ Mercury01:47 – 02:29
- 8☽︎ Moon02:29 – 03:10
- 9♄︎ Saturn03:10 – 03:51
- 10♃︎ Jupiter03:51 – 04:33
- 11♂︎ Mars04:33 – 05:14
- 12☉︎ Sun05:14 – 05:55
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Thursday, 23 July 2026, the Sun rises at 05:54 and sets at 21:40: the day lasts 15h 45m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 05:55, lasts 8h 16m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Jupiter, from 05:54 to 07:13: 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.