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 Saturday, 17 October 2026: day of Saturn
- Sunrise
- 08:15
- Sunset
- 18:58
- Next sunrise
- 08:16
A day hour lasts 54 min; a night hour, 1h 07m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:15 – 09:08
- 2♃︎ Jupiter09:08 – 10:02
- 3♂︎ Mars10:02 – 10:55
- 4☉︎ Sun10:55 – 11:49
- 5♀︎ Venus11:49 – 12:43
- 6☿︎ Mercury12:43 – 13:36
- 7☽︎ Moon13:36 – 14:30
- 8♄︎ Saturn14:30 – 15:23
- 9♃︎ Jupiter15:23 – 16:17
- 10♂︎ Mars16:17 – 17:10
- 11☉︎ Sun17:10 – 18:04
- 12♀︎ Venus18:04 – 18:58
Night
- 1☿︎ Mercury18:58 – 20:04
- 2☽︎ Moon20:04 – 21:11
- 3♄︎ Saturn21:11 – 22:17
- 4♃︎ Jupiter22:17 – 23:24
- 5♂︎ Mars23:24 – 00:30
- 6☉︎ Sun00:30 – 01:37
- 7♀︎ Venus01:37 – 02:43
- 8☿︎ Mercury02:43 – 03:50
- 9☽︎ Moon03:50 – 04:57
- 10♄︎ Saturn04:57 – 06:03
- 11♃︎ Jupiter06:03 – 07:10
- 12♂︎ Mars07:10 – 08:16
Other cities · France
Questions
How are the planetary hours calculated in Cergy-Pontoise?
On Saturday, 17 October 2026, the Sun rises at 08:15 and sets at 18:58: the day lasts 10h 43m, that is twelve day hours of 54 min. The night, until the next sunrise at 08:16, lasts 13h 19m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Saturn, from 08:15 to 09:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.