Planetary hours
in Mons.
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, 21 December 2026: day of the Moon
- Sunrise
- 08:42
- Sunset
- 16:42
- Next sunrise
- 08:42
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Brussels).
Day
- 1☽︎ Moon08:42 – 09:22
- 2♄︎ Saturn09:22 – 10:02
- 3♃︎ Jupiter10:02 – 10:42
- 4♂︎ Mars10:42 – 11:22
- 5☉︎ Sun11:22 – 12:02
- 6♀︎ Venus12:02 – 12:42
- 7☿︎ Mercury12:42 – 13:22
- 8☽︎ Moon13:22 – 14:02
- 9♄︎ Saturn14:02 – 14:42
- 10♃︎ Jupiter14:42 – 15:22
- 11♂︎ Mars15:22 – 16:02
- 12☉︎ Sun16:02 – 16:42
Night
- 1♀︎ Venus16:42 – 18:02
- 2☿︎ Mercury18:02 – 19:22
- 3☽︎ Moon19:22 – 20:42
- 4♄︎ Saturn20:42 – 22:02
- 5♃︎ Jupiter22:02 – 23:22
- 6♂︎ Mars23:22 – 00:42
- 7☉︎ Sun00:42 – 02:02
- 8♀︎ Venus02:02 – 03:22
- 9☿︎ Mercury03:22 – 04:42
- 10☽︎ Moon04:42 – 06:02
- 11♄︎ Saturn06:02 – 07:22
- 12♃︎ Jupiter07:22 – 08:42
Other cities · Belgium
Questions
How are the planetary hours calculated in Mons?
On Monday, 21 December 2026, the Sun rises at 08:42 and sets at 16:42: the day lasts 8h 00m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:42, lasts 16h 00m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
The Moon, from 08:42 to 09:22: 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.