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 Friday, 26 December 2025: day of Venus
- Sunrise
- 08:56
- Sunset
- 17:18
- Next sunrise
- 08:56
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:56 – 09:38
- 2☿︎ Mercury09:38 – 10:19
- 3☽︎ Moon10:19 – 11:01
- 4♄︎ Saturn11:01 – 11:43
- 5♃︎ Jupiter11:43 – 12:25
- 6♂︎ Mars12:25 – 13:07
- 7☉︎ Sun13:07 – 13:49
- 8♀︎ Venus13:49 – 14:31
- 9☿︎ Mercury14:31 – 15:12
- 10☽︎ Moon15:12 – 15:54
- 11♄︎ Saturn15:54 – 16:36
- 12♃︎ Jupiter16:36 – 17:18
Night
- 1♂︎ Mars17:18 – 18:36
- 2☉︎ Sun18:36 – 19:54
- 3♀︎ Venus19:54 – 21:13
- 4☿︎ Mercury21:13 – 22:31
- 5☽︎ Moon22:31 – 23:49
- 6♄︎ Saturn23:49 – 01:07
- 7♃︎ Jupiter01:07 – 02:25
- 8♂︎ Mars02:25 – 03:43
- 9☉︎ Sun03:43 – 05:01
- 10♀︎ Venus05:01 – 06:20
- 11☿︎ Mercury06:20 – 07:38
- 12☽︎ Moon07:38 – 08:56
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Friday, 26 December 2025, the Sun rises at 08:56 and sets at 17:18: the day lasts 8h 22m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:56, lasts 15h 38m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Venus, from 08:56 to 09:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.