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, 26 August 2026: day of Mercury
- Sunrise
- 06:45
- Sunset
- 20:39
- Next sunrise
- 06:46
A day hour lasts 1h 10m; a night hour, 51 min. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury06:45 – 07:54
- 2☽︎ Moon07:54 – 09:04
- 3♄︎ Saturn09:04 – 10:13
- 4♃︎ Jupiter10:13 – 11:23
- 5♂︎ Mars11:23 – 12:32
- 6☉︎ Sun12:32 – 13:42
- 7♀︎ Venus13:42 – 14:52
- 8☿︎ Mercury14:52 – 16:01
- 9☽︎ Moon16:01 – 17:11
- 10♄︎ Saturn17:11 – 18:20
- 11♃︎ Jupiter18:20 – 19:30
- 12♂︎ Mars19:30 – 20:39
Night
- 1☉︎ Sun20:39 – 21:30
- 2♀︎ Venus21:30 – 22:20
- 3☿︎ Mercury22:20 – 23:11
- 4☽︎ Moon23:11 – 00:02
- 5♄︎ Saturn00:02 – 00:52
- 6♃︎ Jupiter00:52 – 01:43
- 7♂︎ Mars01:43 – 02:33
- 8☉︎ Sun02:33 – 03:24
- 9♀︎ Venus03:24 – 04:15
- 10☿︎ Mercury04:15 – 05:05
- 11☽︎ Moon05:05 – 05:56
- 12♄︎ Saturn05:56 – 06:46
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Wednesday, 26 August 2026, the Sun rises at 06:45 and sets at 20:39: the day lasts 13h 54m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 06:46, lasts 10h 07m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Mercury, from 06:45 to 07:54: 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.