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 September 2026: day of the Sun
- Sunrise
- 07:50
- Sunset
- 20:08
- Next sunrise
- 07:51
A day hour lasts 1h 02m; a night hour, 59 min. Local time (Europe/Paris).
Day
- 1☉︎ Sun07:50 – 08:51
- 2♀︎ Venus08:51 – 09:53
- 3☿︎ Mercury09:53 – 10:55
- 4☽︎ Moon10:55 – 11:56
- 5♄︎ Saturn11:56 – 12:58
- 6♃︎ Jupiter12:58 – 13:59
- 7♂︎ Mars13:59 – 15:01
- 8☉︎ Sun15:01 – 16:02
- 9♀︎ Venus16:02 – 17:04
- 10☿︎ Mercury17:04 – 18:05
- 11☽︎ Moon18:05 – 19:07
- 12♄︎ Saturn19:07 – 20:08
Night
- 1♃︎ Jupiter20:08 – 21:07
- 2♂︎ Mars21:07 – 22:06
- 3☉︎ Sun22:06 – 23:04
- 4♀︎ Venus23:04 – 00:03
- 5☿︎ Mercury00:03 – 01:01
- 6☽︎ Moon01:01 – 02:00
- 7♄︎ Saturn02:00 – 02:58
- 8♃︎ Jupiter02:58 – 03:57
- 9♂︎ Mars03:57 – 04:56
- 10☉︎ Sun04:56 – 05:54
- 11♀︎ Venus05:54 – 06:53
- 12☿︎ Mercury06:53 – 07:51
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Sunday, 20 September 2026, the Sun rises at 07:50 and sets at 20:08: the day lasts 12h 19m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:51, lasts 11h 43m: twelve night hours of 59 min.
Which planet rules the first hour that day?
The Sun, from 07:50 to 08:51: 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.