Planetary hours
in Antwerp.
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, 16 December 2025: day of Mars
- Sunrise
- 08:41
- Sunset
- 16:35
- Next sunrise
- 08:41
A day hour lasts 40 min; a night hour, 1h 21m. Local time (Europe/Brussels).
Day
- 1♂︎ Mars08:41 – 09:20
- 2☉︎ Sun09:20 – 10:00
- 3♀︎ Venus10:00 – 10:39
- 4☿︎ Mercury10:39 – 11:19
- 5☽︎ Moon11:19 – 11:58
- 6♄︎ Saturn11:58 – 12:38
- 7♃︎ Jupiter12:38 – 13:17
- 8♂︎ Mars13:17 – 13:57
- 9☉︎ Sun13:57 – 14:36
- 10♀︎ Venus14:36 – 15:16
- 11☿︎ Mercury15:16 – 15:55
- 12☽︎ Moon15:55 – 16:35
Night
- 1♄︎ Saturn16:35 – 17:55
- 2♃︎ Jupiter17:55 – 19:16
- 3♂︎ Mars19:16 – 20:36
- 4☉︎ Sun20:36 – 21:57
- 5♀︎ Venus21:57 – 23:17
- 6☿︎ Mercury23:17 – 00:38
- 7☽︎ Moon00:38 – 01:58
- 8♄︎ Saturn01:58 – 03:19
- 9♃︎ Jupiter03:19 – 04:40
- 10♂︎ Mars04:40 – 06:00
- 11☉︎ Sun06:00 – 07:21
- 12♀︎ Venus07:21 – 08:41
Other cities · Belgium
Questions
How are the planetary hours calculated in Antwerp?
On Tuesday, 16 December 2025, the Sun rises at 08:41 and sets at 16:35: the day lasts 7h 54m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:41, lasts 16h 07m: twelve night hours of 1h 21m.
Which planet rules the first hour that day?
Mars, from 08:41 to 09:20: 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.