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, 8 July 2026: day of Mercury
- Sunrise
- 05:37
- Sunset
- 21:54
- Next sunrise
- 05:38
A day hour lasts 1h 21m; a night hour, 39 min. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury05:37 – 06:58
- 2☽︎ Moon06:58 – 08:20
- 3♄︎ Saturn08:20 – 09:41
- 4♃︎ Jupiter09:41 – 11:03
- 5♂︎ Mars11:03 – 12:24
- 6☉︎ Sun12:24 – 13:46
- 7♀︎ Venus13:46 – 15:07
- 8☿︎ Mercury15:07 – 16:28
- 9☽︎ Moon16:28 – 17:50
- 10♄︎ Saturn17:50 – 19:11
- 11♃︎ Jupiter19:11 – 20:33
- 12♂︎ Mars20:33 – 21:54
Night
- 1☉︎ Sun21:54 – 22:33
- 2♀︎ Venus22:33 – 23:12
- 3☿︎ Mercury23:12 – 23:50
- 4☽︎ Moon23:50 – 00:29
- 5♄︎ Saturn00:29 – 01:07
- 6♃︎ Jupiter01:07 – 01:46
- 7♂︎ Mars01:46 – 02:25
- 8☉︎ Sun02:25 – 03:03
- 9♀︎ Venus03:03 – 03:42
- 10☿︎ Mercury03:42 – 04:20
- 11☽︎ Moon04:20 – 04:59
- 12♄︎ Saturn04:59 – 05:38
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Wednesday, 8 July 2026, the Sun rises at 05:37 and sets at 21:54: the day lasts 16h 18m, that is twelve day hours of 1h 21m. The night, until the next sunrise at 05:38, lasts 7h 43m: twelve night hours of 39 min.
Which planet rules the first hour that day?
Mercury, from 05:37 to 06:58: 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.