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, 12 January 2027: day of Mars
- Sunrise
- 08:39
- Sunset
- 16:59
- Next sunrise
- 08:39
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Brussels).
Day
- 1♂︎ Mars08:39 – 09:21
- 2☉︎ Sun09:21 – 10:03
- 3♀︎ Venus10:03 – 10:44
- 4☿︎ Mercury10:44 – 11:26
- 5☽︎ Moon11:26 – 12:07
- 6♄︎ Saturn12:07 – 12:49
- 7♃︎ Jupiter12:49 – 13:31
- 8♂︎ Mars13:31 – 14:12
- 9☉︎ Sun14:12 – 14:54
- 10♀︎ Venus14:54 – 15:36
- 11☿︎ Mercury15:36 – 16:17
- 12☽︎ Moon16:17 – 16:59
Night
- 1♄︎ Saturn16:59 – 18:17
- 2♃︎ Jupiter18:17 – 19:35
- 3♂︎ Mars19:35 – 20:54
- 4☉︎ Sun20:54 – 22:12
- 5♀︎ Venus22:12 – 23:30
- 6☿︎ Mercury23:30 – 00:49
- 7☽︎ Moon00:49 – 02:07
- 8♄︎ Saturn02:07 – 03:25
- 9♃︎ Jupiter03:25 – 04:44
- 10♂︎ Mars04:44 – 06:02
- 11☉︎ Sun06:02 – 07:20
- 12♀︎ Venus07:20 – 08:39
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Tuesday, 12 January 2027, the Sun rises at 08:39 and sets at 16:59: the day lasts 8h 20m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:39, lasts 15h 40m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mars, from 08:39 to 09:21: 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.