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 Sunday, 20 July 2025: day of the Sun
- Sunrise
- 06:27
- Sunset
- 21:57
- Next sunrise
- 06:29
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1☉︎ Sun06:27 – 07:45
- 2♀︎ Venus07:45 – 09:02
- 3☿︎ Mercury09:02 – 10:20
- 4☽︎ Moon10:20 – 11:37
- 5♄︎ Saturn11:37 – 12:55
- 6♃︎ Jupiter12:55 – 14:12
- 7♂︎ Mars14:12 – 15:30
- 8☉︎ Sun15:30 – 16:47
- 9♀︎ Venus16:47 – 18:05
- 10☿︎ Mercury18:05 – 19:22
- 11☽︎ Moon19:22 – 20:40
- 12♄︎ Saturn20:40 – 21:57
Night
- 1♃︎ Jupiter21:57 – 22:40
- 2♂︎ Mars22:40 – 23:22
- 3☉︎ Sun23:22 – 00:05
- 4♀︎ Venus00:05 – 00:48
- 5☿︎ Mercury00:48 – 01:30
- 6☽︎ Moon01:30 – 02:13
- 7♄︎ Saturn02:13 – 02:55
- 8♃︎ Jupiter02:55 – 03:38
- 9♂︎ Mars03:38 – 04:21
- 10☉︎ Sun04:21 – 05:03
- 11♀︎ Venus05:03 – 05:46
- 12☿︎ Mercury05:46 – 06:29
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Sunday, 20 July 2025, the Sun rises at 06:27 and sets at 21:57: the day lasts 15h 29m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:29, lasts 8h 32m: twelve night hours of 43 min.
Which planet rules the first hour that day?
The Sun, from 06:27 to 07:45: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.