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 Friday, 15 May 2026: day of Venus
- Sunrise
- 05:52
- Sunset
- 21:24
- Next sunrise
- 05:50
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/Brussels).
Day
- 1♀︎ Venus05:52 – 07:09
- 2☿︎ Mercury07:09 – 08:27
- 3☽︎ Moon08:27 – 09:45
- 4♄︎ Saturn09:45 – 11:02
- 5♃︎ Jupiter11:02 – 12:20
- 6♂︎ Mars12:20 – 13:38
- 7☉︎ Sun13:38 – 14:55
- 8♀︎ Venus14:55 – 16:13
- 9☿︎ Mercury16:13 – 17:31
- 10☽︎ Moon17:31 – 18:48
- 11♄︎ Saturn18:48 – 20:06
- 12♃︎ Jupiter20:06 – 21:24
Night
- 1♂︎ Mars21:24 – 22:06
- 2☉︎ Sun22:06 – 22:48
- 3♀︎ Venus22:48 – 23:30
- 4☿︎ Mercury23:30 – 00:12
- 5☽︎ Moon00:12 – 00:55
- 6♄︎ Saturn00:55 – 01:37
- 7♃︎ Jupiter01:37 – 02:19
- 8♂︎ Mars02:19 – 03:01
- 9☉︎ Sun03:01 – 03:43
- 10♀︎ Venus03:43 – 04:26
- 11☿︎ Mercury04:26 – 05:08
- 12☽︎ Moon05:08 – 05:50
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Friday, 15 May 2026, the Sun rises at 05:52 and sets at 21:24: the day lasts 15h 32m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:50, lasts 8h 27m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Venus, from 05:52 to 07:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.