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, 23 July 2025: day of Mercury
- Sunrise
- 06:12
- Sunset
- 21:42
- Next sunrise
- 06:14
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury06:12 – 07:30
- 2☽︎ Moon07:30 – 08:47
- 3♄︎ Saturn08:47 – 10:05
- 4♃︎ Jupiter10:05 – 11:22
- 5♂︎ Mars11:22 – 12:40
- 6☉︎ Sun12:40 – 13:57
- 7♀︎ Venus13:57 – 15:15
- 8☿︎ Mercury15:15 – 16:32
- 9☽︎ Moon16:32 – 17:50
- 10♄︎ Saturn17:50 – 19:07
- 11♃︎ Jupiter19:07 – 20:25
- 12♂︎ Mars20:25 – 21:42
Night
- 1☉︎ Sun21:42 – 22:25
- 2♀︎ Venus22:25 – 23:07
- 3☿︎ Mercury23:07 – 23:50
- 4☽︎ Moon23:50 – 00:33
- 5♄︎ Saturn00:33 – 01:15
- 6♃︎ Jupiter01:15 – 01:58
- 7♂︎ Mars01:58 – 02:41
- 8☉︎ Sun02:41 – 03:23
- 9♀︎ Venus03:23 – 04:06
- 10☿︎ Mercury04:06 – 04:48
- 11☽︎ Moon04:48 – 05:31
- 12♄︎ Saturn05:31 – 06:14
Other cities · France
Questions
How are the planetary hours calculated in Cergy-Pontoise?
On Wednesday, 23 July 2025, the Sun rises at 06:12 and sets at 21:42: the day lasts 15h 30m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:14, lasts 8h 31m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Mercury, from 06:12 to 07:30: 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.