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 Wednesday, 30 December 2026: day of Mercury
- Sunrise
- 08:45
- Sunset
- 17:02
- Next sunrise
- 08:45
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:45 – 09:27
- 2☽︎ Moon09:27 – 10:08
- 3♄︎ Saturn10:08 – 10:50
- 4♃︎ Jupiter10:50 – 11:31
- 5♂︎ Mars11:31 – 12:12
- 6☉︎ Sun12:12 – 12:54
- 7♀︎ Venus12:54 – 13:35
- 8☿︎ Mercury13:35 – 14:17
- 9☽︎ Moon14:17 – 14:58
- 10♄︎ Saturn14:58 – 15:39
- 11♃︎ Jupiter15:39 – 16:21
- 12♂︎ Mars16:21 – 17:02
Night
- 1☉︎ Sun17:02 – 18:21
- 2♀︎ Venus18:21 – 19:39
- 3☿︎ Mercury19:39 – 20:58
- 4☽︎ Moon20:58 – 22:17
- 5♄︎ Saturn22:17 – 23:35
- 6♃︎ Jupiter23:35 – 00:54
- 7♂︎ Mars00:54 – 02:12
- 8☉︎ Sun02:12 – 03:31
- 9♀︎ Venus03:31 – 04:50
- 10☿︎ Mercury04:50 – 06:08
- 11☽︎ Moon06:08 – 07:27
- 12♄︎ Saturn07:27 – 08:45
Other cities · France
Questions
How are the planetary hours calculated in Cergy-Pontoise?
On Wednesday, 30 December 2026, the Sun rises at 08:45 and sets at 17:02: the day lasts 8h 17m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:45, lasts 15h 43m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mercury, 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: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.