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, 7 October 2026: day of Mercury
- Sunrise
- 07:51
- Sunset
- 19:06
- Next sunrise
- 07:52
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury07:51 – 08:47
- 2☽︎ Moon08:47 – 09:43
- 3♄︎ Saturn09:43 – 10:39
- 4♃︎ Jupiter10:39 – 11:36
- 5♂︎ Mars11:36 – 12:32
- 6☉︎ Sun12:32 – 13:28
- 7♀︎ Venus13:28 – 14:24
- 8☿︎ Mercury14:24 – 15:21
- 9☽︎ Moon15:21 – 16:17
- 10♄︎ Saturn16:17 – 17:13
- 11♃︎ Jupiter17:13 – 18:09
- 12♂︎ Mars18:09 – 19:06
Night
- 1☉︎ Sun19:06 – 20:10
- 2♀︎ Venus20:10 – 21:13
- 3☿︎ Mercury21:13 – 22:17
- 4☽︎ Moon22:17 – 23:21
- 5♄︎ Saturn23:21 – 00:25
- 6♃︎ Jupiter00:25 – 01:29
- 7♂︎ Mars01:29 – 02:33
- 8☉︎ Sun02:33 – 03:37
- 9♀︎ Venus03:37 – 04:41
- 10☿︎ Mercury04:41 – 05:44
- 11☽︎ Moon05:44 – 06:48
- 12♄︎ Saturn06:48 – 07:52
Other cities · Belgium
Questions
How are the planetary hours calculated in Leuven?
On Wednesday, 7 October 2026, the Sun rises at 07:51 and sets at 19:06: the day lasts 11h 15m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:52, lasts 12h 47m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Mercury, from 07:51 to 08:47: 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.