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 Tuesday, 31 March 2026: day of Mars
- Sunrise
- 07:19
- Sunset
- 20:12
- Next sunrise
- 07:17
A day hour lasts 1h 04m; a night hour, 55 min. Local time (Europe/Brussels).
Day
- 1♂︎ Mars07:19 – 08:23
- 2☉︎ Sun08:23 – 09:28
- 3♀︎ Venus09:28 – 10:32
- 4☿︎ Mercury10:32 – 11:37
- 5☽︎ Moon11:37 – 12:41
- 6♄︎ Saturn12:41 – 13:45
- 7♃︎ Jupiter13:45 – 14:50
- 8♂︎ Mars14:50 – 15:54
- 9☉︎ Sun15:54 – 16:59
- 10♀︎ Venus16:59 – 18:03
- 11☿︎ Mercury18:03 – 19:07
- 12☽︎ Moon19:07 – 20:12
Night
- 1♄︎ Saturn20:12 – 21:07
- 2♃︎ Jupiter21:07 – 22:03
- 3♂︎ Mars22:03 – 22:58
- 4☉︎ Sun22:58 – 23:53
- 5♀︎ Venus23:53 – 00:49
- 6☿︎ Mercury00:49 – 01:44
- 7☽︎ Moon01:44 – 02:40
- 8♄︎ Saturn02:40 – 03:35
- 9♃︎ Jupiter03:35 – 04:31
- 10♂︎ Mars04:31 – 05:26
- 11☉︎ Sun05:26 – 06:21
- 12♀︎ Venus06:21 – 07:17
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Tuesday, 31 March 2026, the Sun rises at 07:19 and sets at 20:12: the day lasts 12h 53m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 07:17, lasts 11h 05m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mars, from 07:19 to 08:23: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.