Planetary hours
in Brussels.
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, 30 September 2025: day of Mars
- Sunrise
- 07:41
- Sunset
- 19:22
- Next sunrise
- 07:43
A day hour lasts 58 min; a night hour, 1h 02m. Local time (Europe/Brussels).
Day
- 1♂︎ Mars07:41 – 08:39
- 2☉︎ Sun08:39 – 09:38
- 3♀︎ Venus09:38 – 10:36
- 4☿︎ Mercury10:36 – 11:35
- 5☽︎ Moon11:35 – 12:33
- 6♄︎ Saturn12:33 – 13:32
- 7♃︎ Jupiter13:32 – 14:30
- 8♂︎ Mars14:30 – 15:28
- 9☉︎ Sun15:28 – 16:27
- 10♀︎ Venus16:27 – 17:25
- 11☿︎ Mercury17:25 – 18:24
- 12☽︎ Moon18:24 – 19:22
Night
- 1♄︎ Saturn19:22 – 20:24
- 2♃︎ Jupiter20:24 – 21:25
- 3♂︎ Mars21:25 – 22:27
- 4☉︎ Sun22:27 – 23:29
- 5♀︎ Venus23:29 – 00:31
- 6☿︎ Mercury00:31 – 01:32
- 7☽︎ Moon01:32 – 02:34
- 8♄︎ Saturn02:34 – 03:36
- 9♃︎ Jupiter03:36 – 04:37
- 10♂︎ Mars04:37 – 05:39
- 11☉︎ Sun05:39 – 06:41
- 12♀︎ Venus06:41 – 07:43
Other cities · Belgium
Questions
How are the planetary hours calculated in Brussels?
On Tuesday, 30 September 2025, the Sun rises at 07:41 and sets at 19:22: the day lasts 11h 41m, that is twelve day hours of 58 min. The night, until the next sunrise at 07:43, lasts 12h 21m: twelve night hours of 1h 02m.
Which planet rules the first hour that day?
Mars, from 07:41 to 08:39: 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.