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, 10 December 2026: day of Jupiter
- Sunrise
- 08:45
- Sunset
- 17:12
- Next sunrise
- 08:46
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter08:45 – 09:28
- 2♂︎ Mars09:28 – 10:10
- 3☉︎ Sun10:10 – 10:52
- 4♀︎ Venus10:52 – 11:34
- 5☿︎ Mercury11:34 – 12:17
- 6☽︎ Moon12:17 – 12:59
- 7♄︎ Saturn12:59 – 13:41
- 8♃︎ Jupiter13:41 – 14:23
- 9♂︎ Mars14:23 – 15:06
- 10☉︎ Sun15:06 – 15:48
- 11♀︎ Venus15:48 – 16:30
- 12☿︎ Mercury16:30 – 17:12
Night
- 1☽︎ Moon17:12 – 18:30
- 2♄︎ Saturn18:30 – 19:48
- 3♃︎ Jupiter19:48 – 21:06
- 4♂︎ Mars21:06 – 22:24
- 5☉︎ Sun22:24 – 23:42
- 6♀︎ Venus23:42 – 00:59
- 7☿︎ Mercury00:59 – 02:17
- 8☽︎ Moon02:17 – 03:35
- 9♄︎ Saturn03:35 – 04:53
- 10♃︎ Jupiter04:53 – 06:11
- 11♂︎ Mars06:11 – 07:28
- 12☉︎ Sun07:28 – 08:46
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Thursday, 10 December 2026, the Sun rises at 08:45 and sets at 17:12: the day lasts 8h 27m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:46, lasts 15h 34m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Jupiter, from 08:45 to 09:28: 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.