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, 16 July 2025: day of Mercury
- Sunrise
- 06:04
- Sunset
- 21:50
- Next sunrise
- 06:05
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury06:04 – 07:23
- 2☽︎ Moon07:23 – 08:42
- 3♄︎ Saturn08:42 – 10:01
- 4♃︎ Jupiter10:01 – 11:19
- 5♂︎ Mars11:19 – 12:38
- 6☉︎ Sun12:38 – 13:57
- 7♀︎ Venus13:57 – 15:16
- 8☿︎ Mercury15:16 – 16:35
- 9☽︎ Moon16:35 – 17:53
- 10♄︎ Saturn17:53 – 19:12
- 11♃︎ Jupiter19:12 – 20:31
- 12♂︎ Mars20:31 – 21:50
Night
- 1☉︎ Sun21:50 – 22:31
- 2♀︎ Venus22:31 – 23:12
- 3☿︎ Mercury23:12 – 23:54
- 4☽︎ Moon23:54 – 00:35
- 5♄︎ Saturn00:35 – 01:16
- 6♃︎ Jupiter01:16 – 01:58
- 7♂︎ Mars01:58 – 02:39
- 8☉︎ Sun02:39 – 03:20
- 9♀︎ Venus03:20 – 04:01
- 10☿︎ Mercury04:01 – 04:43
- 11☽︎ Moon04:43 – 05:24
- 12♄︎ Saturn05:24 – 06:05
Other cities · France
Questions
How are the planetary hours calculated in Cergy-Pontoise?
On Wednesday, 16 July 2025, the Sun rises at 06:04 and sets at 21:50: the day lasts 15h 45m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 06:05, lasts 8h 16m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Mercury, from 06:04 to 07:23: 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.