Planetary hours
in Saint-Quentin-en-Yvelines.
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 Monday, 15 December 2025: day of the Moon
- Sunrise
- 08:38
- Sunset
- 16:55
- Next sunrise
- 08:39
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Paris).
Day
- 1☽︎ Moon08:38 – 09:19
- 2♄︎ Saturn09:19 – 10:01
- 3♃︎ Jupiter10:01 – 10:42
- 4♂︎ Mars10:42 – 11:24
- 5☉︎ Sun11:24 – 12:05
- 6♀︎ Venus12:05 – 12:47
- 7☿︎ Mercury12:47 – 13:28
- 8☽︎ Moon13:28 – 14:09
- 9♄︎ Saturn14:09 – 14:51
- 10♃︎ Jupiter14:51 – 15:32
- 11♂︎ Mars15:32 – 16:14
- 12☉︎ Sun16:14 – 16:55
Night
- 1♀︎ Venus16:55 – 18:14
- 2☿︎ Mercury18:14 – 19:33
- 3☽︎ Moon19:33 – 20:51
- 4♄︎ Saturn20:51 – 22:10
- 5♃︎ Jupiter22:10 – 23:28
- 6♂︎ Mars23:28 – 00:47
- 7☉︎ Sun00:47 – 02:06
- 8♀︎ Venus02:06 – 03:24
- 9☿︎ Mercury03:24 – 04:43
- 10☽︎ Moon04:43 – 06:01
- 11♄︎ Saturn06:01 – 07:20
- 12♃︎ Jupiter07:20 – 08:39
Other cities · France
Questions
How are the planetary hours calculated in Saint-Quentin-en-Yvelines?
On Monday, 15 December 2025, the Sun rises at 08:38 and sets at 16:55: the day lasts 8h 17m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:39, lasts 15h 43m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
The Moon, from 08:38 to 09:19: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.