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 Monday, 4 May 2026: day of the Moon
- Sunrise
- 06:09
- Sunset
- 21:07
- Next sunrise
- 06:08
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Brussels).
Day
- 1☽︎ Moon06:09 – 07:24
- 2♄︎ Saturn07:24 – 08:39
- 3♃︎ Jupiter08:39 – 09:54
- 4♂︎ Mars09:54 – 11:08
- 5☉︎ Sun11:08 – 12:23
- 6♀︎ Venus12:23 – 13:38
- 7☿︎ Mercury13:38 – 14:53
- 8☽︎ Moon14:53 – 16:08
- 9♄︎ Saturn16:08 – 17:22
- 10♃︎ Jupiter17:22 – 18:37
- 11♂︎ Mars18:37 – 19:52
- 12☉︎ Sun19:52 – 21:07
Night
- 1♀︎ Venus21:07 – 21:52
- 2☿︎ Mercury21:52 – 22:37
- 3☽︎ Moon22:37 – 23:22
- 4♄︎ Saturn23:22 – 00:07
- 5♃︎ Jupiter00:07 – 00:52
- 6♂︎ Mars00:52 – 01:37
- 7☉︎ Sun01:37 – 02:22
- 8♀︎ Venus02:22 – 03:07
- 9☿︎ Mercury03:07 – 03:52
- 10☽︎ Moon03:52 – 04:37
- 11♄︎ Saturn04:37 – 05:22
- 12♃︎ Jupiter05:22 – 06:08
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Monday, 4 May 2026, the Sun rises at 06:09 and sets at 21:07: the day lasts 14h 57m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 06:08, lasts 9h 01m: twelve night hours of 45 min.
Which planet rules the first hour that day?
The Moon, from 06:09 to 07:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.