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 Friday, 18 December 2026: day of Venus
- Sunrise
- 08:40
- Sunset
- 16:41
- Next sunrise
- 08:41
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Brussels).
Day
- 1♀︎ Venus08:40 – 09:20
- 2☿︎ Mercury09:20 – 10:00
- 3☽︎ Moon10:00 – 10:40
- 4♄︎ Saturn10:40 – 11:20
- 5♃︎ Jupiter11:20 – 12:00
- 6♂︎ Mars12:00 – 12:40
- 7☉︎ Sun12:40 – 13:20
- 8♀︎ Venus13:20 – 14:00
- 9☿︎ Mercury14:00 – 14:40
- 10☽︎ Moon14:40 – 15:20
- 11♄︎ Saturn15:20 – 16:01
- 12♃︎ Jupiter16:01 – 16:41
Night
- 1♂︎ Mars16:41 – 18:01
- 2☉︎ Sun18:01 – 19:21
- 3♀︎ Venus19:21 – 20:41
- 4☿︎ Mercury20:41 – 22:01
- 5☽︎ Moon22:01 – 23:21
- 6♄︎ Saturn23:21 – 00:41
- 7♃︎ Jupiter00:41 – 02:01
- 8♂︎ Mars02:01 – 03:21
- 9☉︎ Sun03:21 – 04:41
- 10♀︎ Venus04:41 – 06:01
- 11☿︎ Mercury06:01 – 07:21
- 12☽︎ Moon07:21 – 08:41
Other cities · Belgium
Questions
How are the planetary hours calculated in Mons?
On Friday, 18 December 2026, the Sun rises at 08:40 and sets at 16:41: the day lasts 8h 01m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:41, lasts 16h 00m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Venus, from 08:40 to 09:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.