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 Saturday, 10 January 2026: day of Saturn
- Sunrise
- 08:54
- Sunset
- 17:33
- Next sunrise
- 08:54
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:54 – 09:38
- 2♃︎ Jupiter09:38 – 10:21
- 3♂︎ Mars10:21 – 11:04
- 4☉︎ Sun11:04 – 11:47
- 5♀︎ Venus11:47 – 12:31
- 6☿︎ Mercury12:31 – 13:14
- 7☽︎ Moon13:14 – 13:57
- 8♄︎ Saturn13:57 – 14:40
- 9♃︎ Jupiter14:40 – 15:24
- 10♂︎ Mars15:24 – 16:07
- 11☉︎ Sun16:07 – 16:50
- 12♀︎ Venus16:50 – 17:33
Night
- 1☿︎ Mercury17:33 – 18:50
- 2☽︎ Moon18:50 – 20:07
- 3♄︎ Saturn20:07 – 21:23
- 4♃︎ Jupiter21:23 – 22:40
- 5♂︎ Mars22:40 – 23:57
- 6☉︎ Sun23:57 – 01:14
- 7♀︎ Venus01:14 – 02:30
- 8☿︎ Mercury02:30 – 03:47
- 9☽︎ Moon03:47 – 05:04
- 10♄︎ Saturn05:04 – 06:20
- 11♃︎ Jupiter06:20 – 07:37
- 12♂︎ Mars07:37 – 08:54
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Saturday, 10 January 2026, the Sun rises at 08:54 and sets at 17:33: the day lasts 8h 39m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:54, lasts 15h 21m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Saturn, from 08:54 to 09:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.