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, 1 April 2026: day of Mercury
- Sunrise
- 07:17
- Sunset
- 20:13
- Next sunrise
- 07:15
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury07:17 – 08:22
- 2☽︎ Moon08:22 – 09:26
- 3♄︎ Saturn09:26 – 10:31
- 4♃︎ Jupiter10:31 – 11:36
- 5♂︎ Mars11:36 – 12:40
- 6☉︎ Sun12:40 – 13:45
- 7♀︎ Venus13:45 – 14:50
- 8☿︎ Mercury14:50 – 15:54
- 9☽︎ Moon15:54 – 16:59
- 10♄︎ Saturn16:59 – 18:04
- 11♃︎ Jupiter18:04 – 19:09
- 12♂︎ Mars19:09 – 20:13
Night
- 1☉︎ Sun20:13 – 21:08
- 2♀︎ Venus21:08 – 22:04
- 3☿︎ Mercury22:04 – 22:59
- 4☽︎ Moon22:59 – 23:54
- 5♄︎ Saturn23:54 – 00:49
- 6♃︎ Jupiter00:49 – 01:44
- 7♂︎ Mars01:44 – 02:39
- 8☉︎ Sun02:39 – 03:34
- 9♀︎ Venus03:34 – 04:29
- 10☿︎ Mercury04:29 – 05:24
- 11☽︎ Moon05:24 – 06:20
- 12♄︎ Saturn06:20 – 07:15
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Wednesday, 1 April 2026, the Sun rises at 07:17 and sets at 20:13: the day lasts 12h 56m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 07:15, lasts 11h 01m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mercury, from 07:17 to 08:22: 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.