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 Sunday, 4 January 2026: day of the Sun
- Sunrise
- 08:44
- Sunset
- 16:50
- Next sunrise
- 08:44
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Brussels).
Day
- 1☉︎ Sun08:44 – 09:25
- 2♀︎ Venus09:25 – 10:05
- 3☿︎ Mercury10:05 – 10:46
- 4☽︎ Moon10:46 – 11:26
- 5♄︎ Saturn11:26 – 12:07
- 6♃︎ Jupiter12:07 – 12:47
- 7♂︎ Mars12:47 – 13:28
- 8☉︎ Sun13:28 – 14:08
- 9♀︎ Venus14:08 – 14:49
- 10☿︎ Mercury14:49 – 15:29
- 11☽︎ Moon15:29 – 16:10
- 12♄︎ Saturn16:10 – 16:50
Night
- 1♃︎ Jupiter16:50 – 18:10
- 2♂︎ Mars18:10 – 19:29
- 3☉︎ Sun19:29 – 20:49
- 4♀︎ Venus20:49 – 22:08
- 5☿︎ Mercury22:08 – 23:28
- 6☽︎ Moon23:28 – 00:47
- 7♄︎ Saturn00:47 – 02:06
- 8♃︎ Jupiter02:06 – 03:26
- 9♂︎ Mars03:26 – 04:45
- 10☉︎ Sun04:45 – 06:05
- 11♀︎ Venus06:05 – 07:24
- 12☿︎ Mercury07:24 – 08:44
Other cities · Belgium
Questions
How are the planetary hours calculated in Brussels?
On Sunday, 4 January 2026, the Sun rises at 08:44 and sets at 16:50: the day lasts 8h 06m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:44, lasts 15h 54m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
The Sun, from 08:44 to 09:25: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.