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 Thursday, 25 December 2025: day of Jupiter
- Sunrise
- 08:47
- Sunset
- 16:42
- Next sunrise
- 08:48
A day hour lasts 40 min; a night hour, 1h 20m. Local time (Europe/Brussels).
Day
- 1♃︎ Jupiter08:47 – 09:27
- 2♂︎ Mars09:27 – 10:06
- 3☉︎ Sun10:06 – 10:46
- 4♀︎ Venus10:46 – 11:26
- 5☿︎ Mercury11:26 – 12:05
- 6☽︎ Moon12:05 – 12:45
- 7♄︎ Saturn12:45 – 13:24
- 8♃︎ Jupiter13:24 – 14:04
- 9♂︎ Mars14:04 – 14:44
- 10☉︎ Sun14:44 – 15:23
- 11♀︎ Venus15:23 – 16:03
- 12☿︎ Mercury16:03 – 16:42
Night
- 1☽︎ Moon16:42 – 18:03
- 2♄︎ Saturn18:03 – 19:23
- 3♃︎ Jupiter19:23 – 20:44
- 4♂︎ Mars20:44 – 22:04
- 5☉︎ Sun22:04 – 23:25
- 6♀︎ Venus23:25 – 00:45
- 7☿︎ Mercury00:45 – 02:05
- 8☽︎ Moon02:05 – 03:26
- 9♄︎ Saturn03:26 – 04:46
- 10♃︎ Jupiter04:46 – 06:07
- 11♂︎ Mars06:07 – 07:27
- 12☉︎ Sun07:27 – 08:48
Other cities · Belgium
Questions
How are the planetary hours calculated in Gent?
On Thursday, 25 December 2025, the Sun rises at 08:47 and sets at 16:42: the day lasts 7h 55m, that is twelve day hours of 40 min. The night, until the next sunrise at 08:48, lasts 16h 05m: twelve night hours of 1h 20m.
Which planet rules the first hour that day?
Jupiter, from 08:47 to 09:27: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.