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, 12 July 2025: day of Saturn
- Sunrise
- 06:19
- Sunset
- 22:04
- Next sunrise
- 06:20
A day hour lasts 1h 19m; a night hour, 41 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn06:19 – 07:38
- 2♃︎ Jupiter07:38 – 08:57
- 3♂︎ Mars08:57 – 10:15
- 4☉︎ Sun10:15 – 11:34
- 5♀︎ Venus11:34 – 12:53
- 6☿︎ Mercury12:53 – 14:12
- 7☽︎ Moon14:12 – 15:30
- 8♄︎ Saturn15:30 – 16:49
- 9♃︎ Jupiter16:49 – 18:08
- 10♂︎ Mars18:08 – 19:27
- 11☉︎ Sun19:27 – 20:45
- 12♀︎ Venus20:45 – 22:04
Night
- 1☿︎ Mercury22:04 – 22:45
- 2☽︎ Moon22:45 – 23:27
- 3♄︎ Saturn23:27 – 00:08
- 4♃︎ Jupiter00:08 – 00:49
- 5♂︎ Mars00:49 – 01:31
- 6☉︎ Sun01:31 – 02:12
- 7♀︎ Venus02:12 – 02:53
- 8☿︎ Mercury02:53 – 03:35
- 9☽︎ Moon03:35 – 04:16
- 10♄︎ Saturn04:16 – 04:57
- 11♃︎ Jupiter04:57 – 05:39
- 12♂︎ Mars05:39 – 06:20
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Saturday, 12 July 2025, the Sun rises at 06:19 and sets at 22:04: the day lasts 15h 45m, that is twelve day hours of 1h 19m. The night, until the next sunrise at 06:20, lasts 8h 16m: twelve night hours of 41 min.
Which planet rules the first hour that day?
Saturn, from 06:19 to 07:38: 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.