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, 21 April 2026: day of Mars
- Sunrise
- 06:36
- Sunset
- 20:47
- Next sunrise
- 06:33
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Brussels).
Day
- 1♂︎ Mars06:36 – 07:46
- 2☉︎ Sun07:46 – 08:57
- 3♀︎ Venus08:57 – 10:08
- 4☿︎ Mercury10:08 – 11:19
- 5☽︎ Moon11:19 – 12:30
- 6♄︎ Saturn12:30 – 13:41
- 7♃︎ Jupiter13:41 – 14:52
- 8♂︎ Mars14:52 – 16:03
- 9☉︎ Sun16:03 – 17:14
- 10♀︎ Venus17:14 – 18:25
- 11☿︎ Mercury18:25 – 19:36
- 12☽︎ Moon19:36 – 20:47
Night
- 1♄︎ Saturn20:47 – 21:36
- 2♃︎ Jupiter21:36 – 22:25
- 3♂︎ Mars22:25 – 23:14
- 4☉︎ Sun23:14 – 00:03
- 5♀︎ Venus00:03 – 00:51
- 6☿︎ Mercury00:51 – 01:40
- 7☽︎ Moon01:40 – 02:29
- 8♄︎ Saturn02:29 – 03:18
- 9♃︎ Jupiter03:18 – 04:07
- 10♂︎ Mars04:07 – 04:56
- 11☉︎ Sun04:56 – 05:45
- 12♀︎ Venus05:45 – 06:33
Other cities · Belgium
Questions
How are the planetary hours calculated in Brussels?
On Tuesday, 21 April 2026, the Sun rises at 06:36 and sets at 20:47: the day lasts 14h 12m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 06:33, lasts 9h 46m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mars, from 06:36 to 07:46: 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.