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, 8 October 2026: day of Jupiter
- Sunrise
- 08:15
- Sunset
- 19:31
- Next sunrise
- 08:17
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter08:15 – 09:12
- 2♂︎ Mars09:12 – 10:08
- 3☉︎ Sun10:08 – 11:04
- 4♀︎ Venus11:04 – 12:01
- 5☿︎ Mercury12:01 – 12:57
- 6☽︎ Moon12:57 – 13:53
- 7♄︎ Saturn13:53 – 14:50
- 8♃︎ Jupiter14:50 – 15:46
- 9♂︎ Mars15:46 – 16:42
- 10☉︎ Sun16:42 – 17:39
- 11♀︎ Venus17:39 – 18:35
- 12☿︎ Mercury18:35 – 19:31
Night
- 1☽︎ Moon19:31 – 20:35
- 2♄︎ Saturn20:35 – 21:39
- 3♃︎ Jupiter21:39 – 22:43
- 4♂︎ Mars22:43 – 23:46
- 5☉︎ Sun23:46 – 00:50
- 6♀︎ Venus00:50 – 01:54
- 7☿︎ Mercury01:54 – 02:58
- 8☽︎ Moon02:58 – 04:02
- 9♄︎ Saturn04:02 – 05:05
- 10♃︎ Jupiter05:05 – 06:09
- 11♂︎ Mars06:09 – 07:13
- 12☉︎ Sun07:13 – 08:17
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Thursday, 8 October 2026, the Sun rises at 08:15 and sets at 19:31: the day lasts 11h 16m, that is twelve day hours of 56 min. The night, until the next sunrise at 08:17, lasts 12h 45m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Jupiter, from 08:15 to 09:12: 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.