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 Thursday, 23 October 2025: day of Jupiter
- Sunrise
- 08:20
- Sunset
- 18:36
- Next sunrise
- 08:21
A day hour lasts 51 min; a night hour, 1h 09m. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter08:20 – 09:11
- 2♂︎ Mars09:11 – 10:02
- 3☉︎ Sun10:02 – 10:54
- 4♀︎ Venus10:54 – 11:45
- 5☿︎ Mercury11:45 – 12:36
- 6☽︎ Moon12:36 – 13:28
- 7♄︎ Saturn13:28 – 14:19
- 8♃︎ Jupiter14:19 – 15:10
- 9♂︎ Mars15:10 – 16:02
- 10☉︎ Sun16:02 – 16:53
- 11♀︎ Venus16:53 – 17:44
- 12☿︎ Mercury17:44 – 18:36
Night
- 1☽︎ Moon18:36 – 19:44
- 2♄︎ Saturn19:44 – 20:53
- 3♃︎ Jupiter20:53 – 22:02
- 4♂︎ Mars22:02 – 23:11
- 5☉︎ Sun23:11 – 00:20
- 6♀︎ Venus00:20 – 01:28
- 7☿︎ Mercury01:28 – 02:37
- 8☽︎ Moon02:37 – 03:46
- 9♄︎ Saturn03:46 – 04:55
- 10♃︎ Jupiter04:55 – 06:04
- 11♂︎ Mars06:04 – 07:12
- 12☉︎ Sun07:12 – 08:21
Other cities · Belgium
Questions
How are the planetary hours calculated in Mons?
On Thursday, 23 October 2025, the Sun rises at 08:20 and sets at 18:36: the day lasts 10h 16m, that is twelve day hours of 51 min. The night, until the next sunrise at 08:21, lasts 13h 46m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
Jupiter, from 08:20 to 09:11: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.