Planetary hours
in Cergy-Pontoise.
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, 31 December 2026: day of Jupiter
- Sunrise
- 08:45
- Sunset
- 17:03
- Next sunrise
- 08:45
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter08:45 – 09:27
- 2♂︎ Mars09:27 – 10:08
- 3☉︎ Sun10:08 – 10:50
- 4♀︎ Venus10:50 – 11:31
- 5☿︎ Mercury11:31 – 12:13
- 6☽︎ Moon12:13 – 12:54
- 7♄︎ Saturn12:54 – 13:36
- 8♃︎ Jupiter13:36 – 14:17
- 9♂︎ Mars14:17 – 14:59
- 10☉︎ Sun14:59 – 15:40
- 11♀︎ Venus15:40 – 16:22
- 12☿︎ Mercury16:22 – 17:03
Night
- 1☽︎ Moon17:03 – 18:22
- 2♄︎ Saturn18:22 – 19:40
- 3♃︎ Jupiter19:40 – 20:59
- 4♂︎ Mars20:59 – 22:17
- 5☉︎ Sun22:17 – 23:36
- 6♀︎ Venus23:36 – 00:54
- 7☿︎ Mercury00:54 – 02:13
- 8☽︎ Moon02:13 – 03:31
- 9♄︎ Saturn03:31 – 04:50
- 10♃︎ Jupiter04:50 – 06:08
- 11♂︎ Mars06:08 – 07:27
- 12☉︎ Sun07:27 – 08:45
Other cities · France
Questions
How are the planetary hours calculated in Cergy-Pontoise?
On Thursday, 31 December 2026, the Sun rises at 08:45 and sets at 17:03: the day lasts 8h 18m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:45, lasts 15h 42m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Jupiter, from 08:45 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.