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 Tuesday, 2 December 2025: day of Mars
- Sunrise
- 08:37
- Sunset
- 17:14
- Next sunrise
- 08:38
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:37 – 09:20
- 2☉︎ Sun09:20 – 10:03
- 3♀︎ Venus10:03 – 10:46
- 4☿︎ Mercury10:46 – 11:29
- 5☽︎ Moon11:29 – 12:12
- 6♄︎ Saturn12:12 – 12:56
- 7♃︎ Jupiter12:56 – 13:39
- 8♂︎ Mars13:39 – 14:22
- 9☉︎ Sun14:22 – 15:05
- 10♀︎ Venus15:05 – 15:48
- 11☿︎ Mercury15:48 – 16:31
- 12☽︎ Moon16:31 – 17:14
Night
- 1♄︎ Saturn17:14 – 18:31
- 2♃︎ Jupiter18:31 – 19:48
- 3♂︎ Mars19:48 – 21:05
- 4☉︎ Sun21:05 – 22:22
- 5♀︎ Venus22:22 – 23:39
- 6☿︎ Mercury23:39 – 00:56
- 7☽︎ Moon00:56 – 02:13
- 8♄︎ Saturn02:13 – 03:30
- 9♃︎ Jupiter03:30 – 04:47
- 10♂︎ Mars04:47 – 06:04
- 11☉︎ Sun06:04 – 07:21
- 12♀︎ Venus07:21 – 08:38
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Tuesday, 2 December 2025, the Sun rises at 08:37 and sets at 17:14: the day lasts 8h 38m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:38, lasts 15h 24m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mars, from 08:37 to 09:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.