Planetary hours
in Gent.
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, 15 December 2026: day of Mars
- Sunrise
- 08:41
- Sunset
- 16:38
- Next sunrise
- 08:42
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Brussels).
Day
- 1♂︎ Mars08:41 – 09:21
- 2☉︎ Sun09:21 – 10:01
- 3♀︎ Venus10:01 – 10:41
- 4☿︎ Mercury10:41 – 11:20
- 5☽︎ Moon11:20 – 12:00
- 6♄︎ Saturn12:00 – 12:40
- 7♃︎ Jupiter12:40 – 13:19
- 8♂︎ Mars13:19 – 13:59
- 9☉︎ Sun13:59 – 14:39
- 10♀︎ Venus14:39 – 15:18
- 11☿︎ Mercury15:18 – 15:58
- 12☽︎ Moon15:58 – 16:38
Night
- 1♄︎ Saturn16:38 – 17:58
- 2♃︎ Jupiter17:58 – 19:19
- 3♂︎ Mars19:19 – 20:39
- 4☉︎ Sun20:39 – 21:59
- 5♀︎ Venus21:59 – 23:20
- 6☿︎ Mercury23:20 – 00:40
- 7☽︎ Moon00:40 – 02:00
- 8♄︎ Saturn02:00 – 03:21
- 9♃︎ Jupiter03:21 – 04:41
- 10♂︎ Mars04:41 – 06:02
- 11☉︎ Sun06:02 – 07:22
- 12♀︎ Venus07:22 – 08:42
Other cities · Belgium
Questions
How are the planetary hours calculated in Gent?
On Tuesday, 15 December 2026, the Sun rises at 08:41 and sets at 16:38: the day lasts 7h 56m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:42, lasts 16h 04m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Mars, from 08:41 to 09:21: 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.