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, 18 October 2026: day of the Sun
- Sunrise
- 08:30
- Sunset
- 19:12
- Next sunrise
- 08:31
A day hour lasts 54 min; a night hour, 1h 07m. Local time (Europe/Paris).
Day
- 1☉︎ Sun08:30 – 09:23
- 2♀︎ Venus09:23 – 10:17
- 3☿︎ Mercury10:17 – 11:10
- 4☽︎ Moon11:10 – 12:04
- 5♄︎ Saturn12:04 – 12:57
- 6♃︎ Jupiter12:57 – 13:51
- 7♂︎ Mars13:51 – 14:44
- 8☉︎ Sun14:44 – 15:38
- 9♀︎ Venus15:38 – 16:31
- 10☿︎ Mercury16:31 – 17:25
- 11☽︎ Moon17:25 – 18:19
- 12♄︎ Saturn18:19 – 19:12
Night
- 1♃︎ Jupiter19:12 – 20:19
- 2♂︎ Mars20:19 – 21:25
- 3☉︎ Sun21:25 – 22:32
- 4♀︎ Venus22:32 – 23:38
- 5☿︎ Mercury23:38 – 00:45
- 6☽︎ Moon00:45 – 01:52
- 7♄︎ Saturn01:52 – 02:58
- 8♃︎ Jupiter02:58 – 04:05
- 9♂︎ Mars04:05 – 05:12
- 10☉︎ Sun05:12 – 06:18
- 11♀︎ Venus06:18 – 07:25
- 12☿︎ Mercury07:25 – 08:31
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Sunday, 18 October 2026, the Sun rises at 08:30 and sets at 19:12: the day lasts 10h 42m, that is twelve day hours of 54 min. The night, until the next sunrise at 08:31, lasts 13h 19m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
The Sun, from 08:30 to 09:23: 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.