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, 19 July 2025: day of Saturn
- Sunrise
- 06:26
- Sunset
- 21:58
- Next sunrise
- 06:27
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn06:26 – 07:44
- 2♃︎ Jupiter07:44 – 09:02
- 3♂︎ Mars09:02 – 10:19
- 4☉︎ Sun10:19 – 11:37
- 5♀︎ Venus11:37 – 12:55
- 6☿︎ Mercury12:55 – 14:12
- 7☽︎ Moon14:12 – 15:30
- 8♄︎ Saturn15:30 – 16:47
- 9♃︎ Jupiter16:47 – 18:05
- 10♂︎ Mars18:05 – 19:23
- 11☉︎ Sun19:23 – 20:40
- 12♀︎ Venus20:40 – 21:58
Night
- 1☿︎ Mercury21:58 – 22:40
- 2☽︎ Moon22:40 – 23:23
- 3♄︎ Saturn23:23 – 00:05
- 4♃︎ Jupiter00:05 – 00:48
- 5♂︎ Mars00:48 – 01:30
- 6☉︎ Sun01:30 – 02:13
- 7♀︎ Venus02:13 – 02:55
- 8☿︎ Mercury02:55 – 03:38
- 9☽︎ Moon03:38 – 04:20
- 10♄︎ Saturn04:20 – 05:03
- 11♃︎ Jupiter05:03 – 05:45
- 12♂︎ Mars05:45 – 06:27
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Saturday, 19 July 2025, the Sun rises at 06:26 and sets at 21:58: the day lasts 15h 32m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 06:27, lasts 8h 29m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Saturn, from 06:26 to 07:44: 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.