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 Wednesday, 29 July 2026: day of Mercury
- Sunrise
- 06:02
- Sunset
- 21:31
- Next sunrise
- 06:04
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury06:02 – 07:20
- 2☽︎ Moon07:20 – 08:37
- 3♄︎ Saturn08:37 – 09:55
- 4♃︎ Jupiter09:55 – 11:12
- 5♂︎ Mars11:12 – 12:29
- 6☉︎ Sun12:29 – 13:47
- 7♀︎ Venus13:47 – 15:04
- 8☿︎ Mercury15:04 – 16:22
- 9☽︎ Moon16:22 – 17:39
- 10♄︎ Saturn17:39 – 18:56
- 11♃︎ Jupiter18:56 – 20:14
- 12♂︎ Mars20:14 – 21:31
Night
- 1☉︎ Sun21:31 – 22:14
- 2♀︎ Venus22:14 – 22:57
- 3☿︎ Mercury22:57 – 23:39
- 4☽︎ Moon23:39 – 00:22
- 5♄︎ Saturn00:22 – 01:05
- 6♃︎ Jupiter01:05 – 01:47
- 7♂︎ Mars01:47 – 02:30
- 8☉︎ Sun02:30 – 03:13
- 9♀︎ Venus03:13 – 03:56
- 10☿︎ Mercury03:56 – 04:38
- 11☽︎ Moon04:38 – 05:21
- 12♄︎ Saturn05:21 – 06:04
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Wednesday, 29 July 2026, the Sun rises at 06:02 and sets at 21:31: the day lasts 15h 29m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:04, lasts 8h 33m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Mercury, from 06:02 to 07:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.