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, 31 July 2025: day of Jupiter
- Sunrise
- 06:10
- Sunset
- 21:29
- Next sunrise
- 06:12
A day hour lasts 1h 17m; a night hour, 44 min. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter06:10 – 07:27
- 2♂︎ Mars07:27 – 08:43
- 3☉︎ Sun08:43 – 10:00
- 4♀︎ Venus10:00 – 11:16
- 5☿︎ Mercury11:16 – 12:33
- 6☽︎ Moon12:33 – 13:50
- 7♄︎ Saturn13:50 – 15:06
- 8♃︎ Jupiter15:06 – 16:23
- 9♂︎ Mars16:23 – 17:39
- 10☉︎ Sun17:39 – 18:56
- 11♀︎ Venus18:56 – 20:12
- 12☿︎ Mercury20:12 – 21:29
Night
- 1☽︎ Moon21:29 – 22:13
- 2♄︎ Saturn22:13 – 22:56
- 3♃︎ Jupiter22:56 – 23:40
- 4♂︎ Mars23:40 – 00:23
- 5☉︎ Sun00:23 – 01:07
- 6♀︎ Venus01:07 – 01:50
- 7☿︎ Mercury01:50 – 02:34
- 8☽︎ Moon02:34 – 03:17
- 9♄︎ Saturn03:17 – 04:01
- 10♃︎ Jupiter04:01 – 04:45
- 11♂︎ Mars04:45 – 05:28
- 12☉︎ Sun05:28 – 06:12
Other cities · Belgium
Questions
How are the planetary hours calculated in Mons?
On Thursday, 31 July 2025, the Sun rises at 06:10 and sets at 21:29: the day lasts 15h 19m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:12, lasts 8h 43m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Jupiter, from 06:10 to 07:27: 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.