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 Tuesday, 21 October 2025: day of Mars
- Sunrise
- 08:16
- Sunset
- 18:40
- Next sunrise
- 08:18
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/Brussels).
Day
- 1♂︎ Mars08:16 – 09:08
- 2☉︎ Sun09:08 – 10:00
- 3♀︎ Venus10:00 – 10:52
- 4☿︎ Mercury10:52 – 11:44
- 5☽︎ Moon11:44 – 12:36
- 6♄︎ Saturn12:36 – 13:28
- 7♃︎ Jupiter13:28 – 14:20
- 8♂︎ Mars14:20 – 15:12
- 9☉︎ Sun15:12 – 16:04
- 10♀︎ Venus16:04 – 16:56
- 11☿︎ Mercury16:56 – 17:48
- 12☽︎ Moon17:48 – 18:40
Night
- 1♄︎ Saturn18:40 – 19:48
- 2♃︎ Jupiter19:48 – 20:56
- 3♂︎ Mars20:56 – 22:04
- 4☉︎ Sun22:04 – 23:12
- 5♀︎ Venus23:12 – 00:21
- 6☿︎ Mercury00:21 – 01:29
- 7☽︎ Moon01:29 – 02:37
- 8♄︎ Saturn02:37 – 03:45
- 9♃︎ Jupiter03:45 – 04:53
- 10♂︎ Mars04:53 – 06:02
- 11☉︎ Sun06:02 – 07:10
- 12♀︎ Venus07:10 – 08:18
Other cities · Belgium
Questions
How are the planetary hours calculated in Mons?
On Tuesday, 21 October 2025, the Sun rises at 08:16 and sets at 18:40: the day lasts 10h 23m, that is twelve day hours of 52 min. The night, until the next sunrise at 08:18, lasts 13h 38m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mars, from 08:16 to 09:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.