Planetary hours
in Rennes.
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, 5 December 2025: day of Venus
- Sunrise
- 08:40
- Sunset
- 17:13
- Next sunrise
- 08:41
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:40 – 09:23
- 2☿︎ Mercury09:23 – 10:06
- 3☽︎ Moon10:06 – 10:48
- 4♄︎ Saturn10:48 – 11:31
- 5♃︎ Jupiter11:31 – 12:14
- 6♂︎ Mars12:14 – 12:57
- 7☉︎ Sun12:57 – 13:40
- 8♀︎ Venus13:40 – 14:22
- 9☿︎ Mercury14:22 – 15:05
- 10☽︎ Moon15:05 – 15:48
- 11♄︎ Saturn15:48 – 16:31
- 12♃︎ Jupiter16:31 – 17:13
Night
- 1♂︎ Mars17:13 – 18:31
- 2☉︎ Sun18:31 – 19:48
- 3♀︎ Venus19:48 – 21:05
- 4☿︎ Mercury21:05 – 22:23
- 5☽︎ Moon22:23 – 23:40
- 6♄︎ Saturn23:40 – 00:57
- 7♃︎ Jupiter00:57 – 02:15
- 8♂︎ Mars02:15 – 03:32
- 9☉︎ Sun03:32 – 04:49
- 10♀︎ Venus04:49 – 06:07
- 11☿︎ Mercury06:07 – 07:24
- 12☽︎ Moon07:24 – 08:41
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Friday, 5 December 2025, the Sun rises at 08:40 and sets at 17:13: the day lasts 8h 33m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:41, lasts 15h 28m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Venus, from 08:40 to 09:23: 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.