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 Thursday, 17 September 2026: day of Jupiter
- Sunrise
- 07:46
- Sunset
- 20:15
- Next sunrise
- 07:47
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter07:46 – 08:48
- 2♂︎ Mars08:48 – 09:51
- 3☉︎ Sun09:51 – 10:53
- 4♀︎ Venus10:53 – 11:55
- 5☿︎ Mercury11:55 – 12:58
- 6☽︎ Moon12:58 – 14:00
- 7♄︎ Saturn14:00 – 15:03
- 8♃︎ Jupiter15:03 – 16:05
- 9♂︎ Mars16:05 – 17:07
- 10☉︎ Sun17:07 – 18:10
- 11♀︎ Venus18:10 – 19:12
- 12☿︎ Mercury19:12 – 20:15
Night
- 1☽︎ Moon20:15 – 21:12
- 2♄︎ Saturn21:12 – 22:10
- 3♃︎ Jupiter22:10 – 23:08
- 4♂︎ Mars23:08 – 00:05
- 5☉︎ Sun00:05 – 01:03
- 6♀︎ Venus01:03 – 02:01
- 7☿︎ Mercury02:01 – 02:59
- 8☽︎ Moon02:59 – 03:56
- 9♄︎ Saturn03:56 – 04:54
- 10♃︎ Jupiter04:54 – 05:52
- 11♂︎ Mars05:52 – 06:49
- 12☉︎ Sun06:49 – 07:47
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Thursday, 17 September 2026, the Sun rises at 07:46 and sets at 20:15: the day lasts 12h 29m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:47, lasts 11h 32m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Jupiter, from 07:46 to 08:48: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.