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, 28 January 2026: day of Mercury
- Sunrise
- 08:27
- Sunset
- 17:42
- Next sunrise
- 08:26
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:27 – 09:13
- 2☽︎ Moon09:13 – 10:00
- 3♄︎ Saturn10:00 – 10:46
- 4♃︎ Jupiter10:46 – 11:32
- 5♂︎ Mars11:32 – 12:18
- 6☉︎ Sun12:18 – 13:04
- 7♀︎ Venus13:04 – 13:51
- 8☿︎ Mercury13:51 – 14:37
- 9☽︎ Moon14:37 – 15:23
- 10♄︎ Saturn15:23 – 16:09
- 11♃︎ Jupiter16:09 – 16:55
- 12♂︎ Mars16:55 – 17:42
Night
- 1☉︎ Sun17:42 – 18:55
- 2♀︎ Venus18:55 – 20:09
- 3☿︎ Mercury20:09 – 21:23
- 4☽︎ Moon21:23 – 22:36
- 5♄︎ Saturn22:36 – 23:50
- 6♃︎ Jupiter23:50 – 01:04
- 7♂︎ Mars01:04 – 02:17
- 8☉︎ Sun02:17 – 03:31
- 9♀︎ Venus03:31 – 04:45
- 10☿︎ Mercury04:45 – 05:59
- 11☽︎ Moon05:59 – 07:12
- 12♄︎ Saturn07:12 – 08:26
Other cities · France
Questions
How are the planetary hours calculated in Cergy-Pontoise?
On Wednesday, 28 January 2026, the Sun rises at 08:27 and sets at 17:42: the day lasts 9h 14m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:26, lasts 14h 44m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mercury, from 08:27 to 09:13: 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.