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, 5 August 2026: day of Mercury
- Sunrise
- 06:13
- Sunset
- 21:20
- Next sunrise
- 06:14
A day hour lasts 1h 16m; a night hour, 45 min. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury06:13 – 07:28
- 2☽︎ Moon07:28 – 08:44
- 3♄︎ Saturn08:44 – 09:59
- 4♃︎ Jupiter09:59 – 11:15
- 5♂︎ Mars11:15 – 12:31
- 6☉︎ Sun12:31 – 13:46
- 7♀︎ Venus13:46 – 15:02
- 8☿︎ Mercury15:02 – 16:17
- 9☽︎ Moon16:17 – 17:33
- 10♄︎ Saturn17:33 – 18:49
- 11♃︎ Jupiter18:49 – 20:04
- 12♂︎ Mars20:04 – 21:20
Night
- 1☉︎ Sun21:20 – 22:04
- 2♀︎ Venus22:04 – 22:49
- 3☿︎ Mercury22:49 – 23:33
- 4☽︎ Moon23:33 – 00:18
- 5♄︎ Saturn00:18 – 01:02
- 6♃︎ Jupiter01:02 – 01:47
- 7♂︎ Mars01:47 – 02:31
- 8☉︎ Sun02:31 – 03:16
- 9♀︎ Venus03:16 – 04:01
- 10☿︎ Mercury04:01 – 04:45
- 11☽︎ Moon04:45 – 05:30
- 12♄︎ Saturn05:30 – 06:14
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Wednesday, 5 August 2026, the Sun rises at 06:13 and sets at 21:20: the day lasts 15h 07m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 06:14, lasts 8h 54m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Mercury, from 06:13 to 07:28: 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.