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, 8 December 2025: day of the Moon
- Sunrise
- 08:31
- Sunset
- 16:55
- Next sunrise
- 08:32
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1☽︎ Moon08:31 – 09:13
- 2♄︎ Saturn09:13 – 09:55
- 3♃︎ Jupiter09:55 – 10:37
- 4♂︎ Mars10:37 – 11:19
- 5☉︎ Sun11:19 – 12:01
- 6♀︎ Venus12:01 – 12:43
- 7☿︎ Mercury12:43 – 13:25
- 8☽︎ Moon13:25 – 14:07
- 9♄︎ Saturn14:07 – 14:49
- 10♃︎ Jupiter14:49 – 15:31
- 11♂︎ Mars15:31 – 16:13
- 12☉︎ Sun16:13 – 16:55
Night
- 1♀︎ Venus16:55 – 18:13
- 2☿︎ Mercury18:13 – 19:31
- 3☽︎ Moon19:31 – 20:49
- 4♄︎ Saturn20:49 – 22:08
- 5♃︎ Jupiter22:08 – 23:26
- 6♂︎ Mars23:26 – 00:44
- 7☉︎ Sun00:44 – 02:02
- 8♀︎ Venus02:02 – 03:20
- 9☿︎ Mercury03:20 – 04:38
- 10☽︎ Moon04:38 – 05:56
- 11♄︎ Saturn05:56 – 07:14
- 12♃︎ Jupiter07:14 – 08:32
Other cities · France
Questions
How are the planetary hours calculated in Saint-Quentin-en-Yvelines?
On Monday, 8 December 2025, the Sun rises at 08:31 and sets at 16:55: the day lasts 8h 24m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:32, lasts 15h 37m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
The Moon, from 08:31 to 09:13: 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.