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 Saturday, 18 October 2025: day of Saturn
- Sunrise
- 08:11
- Sunset
- 18:45
- Next sunrise
- 08:13
A day hour lasts 53 min; a night hour, 1h 07m. Local time (Europe/Brussels).
Day
- 1♄︎ Saturn08:11 – 09:04
- 2♃︎ Jupiter09:04 – 09:57
- 3♂︎ Mars09:57 – 10:50
- 4☉︎ Sun10:50 – 11:43
- 5♀︎ Venus11:43 – 12:36
- 6☿︎ Mercury12:36 – 13:28
- 7☽︎ Moon13:28 – 14:21
- 8♄︎ Saturn14:21 – 15:14
- 9♃︎ Jupiter15:14 – 16:07
- 10♂︎ Mars16:07 – 17:00
- 11☉︎ Sun17:00 – 17:53
- 12♀︎ Venus17:53 – 18:45
Night
- 1☿︎ Mercury18:45 – 19:53
- 2☽︎ Moon19:53 – 21:00
- 3♄︎ Saturn21:00 – 22:07
- 4♃︎ Jupiter22:07 – 23:15
- 5♂︎ Mars23:15 – 00:22
- 6☉︎ Sun00:22 – 01:29
- 7♀︎ Venus01:29 – 02:37
- 8☿︎ Mercury02:37 – 03:44
- 9☽︎ Moon03:44 – 04:51
- 10♄︎ Saturn04:51 – 05:58
- 11♃︎ Jupiter05:58 – 07:06
- 12♂︎ Mars07:06 – 08:13
Other cities · Belgium
Questions
How are the planetary hours calculated in Mons?
On Saturday, 18 October 2025, the Sun rises at 08:11 and sets at 18:45: the day lasts 10h 34m, that is twelve day hours of 53 min. The night, until the next sunrise at 08:13, lasts 13h 27m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Saturn, from 08:11 to 09:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.