Planetary hours
in Rouen.
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 Friday, 18 December 2026: day of Venus
- Sunrise
- 08:47
- Sunset
- 16:57
- Next sunrise
- 08:47
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:47 – 09:27
- 2☿︎ Mercury09:27 – 10:08
- 3☽︎ Moon10:08 – 10:49
- 4♄︎ Saturn10:49 – 11:30
- 5♃︎ Jupiter11:30 – 12:11
- 6♂︎ Mars12:11 – 12:52
- 7☉︎ Sun12:52 – 13:32
- 8♀︎ Venus13:32 – 14:13
- 9☿︎ Mercury14:13 – 14:54
- 10☽︎ Moon14:54 – 15:35
- 11♄︎ Saturn15:35 – 16:16
- 12♃︎ Jupiter16:16 – 16:57
Night
- 1♂︎ Mars16:57 – 18:16
- 2☉︎ Sun18:16 – 19:35
- 3♀︎ Venus19:35 – 20:54
- 4☿︎ Mercury20:54 – 22:14
- 5☽︎ Moon22:14 – 23:33
- 6♄︎ Saturn23:33 – 00:52
- 7♃︎ Jupiter00:52 – 02:11
- 8♂︎ Mars02:11 – 03:30
- 9☉︎ Sun03:30 – 04:50
- 10♀︎ Venus04:50 – 06:09
- 11☿︎ Mercury06:09 – 07:28
- 12☽︎ Moon07:28 – 08:47
Other cities · France
Questions
How are the planetary hours calculated in Rouen?
On Friday, 18 December 2026, the Sun rises at 08:47 and sets at 16:57: the day lasts 8h 10m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:47, lasts 15h 50m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Venus, from 08:47 to 09:27: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.