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, 22 December 2026: day of Mars
- Sunrise
- 08:54
- Sunset
- 17:15
- Next sunrise
- 08:55
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:54 – 09:36
- 2☉︎ Sun09:36 – 10:18
- 3♀︎ Venus10:18 – 10:59
- 4☿︎ Mercury10:59 – 11:41
- 5☽︎ Moon11:41 – 12:23
- 6♄︎ Saturn12:23 – 13:05
- 7♃︎ Jupiter13:05 – 13:47
- 8♂︎ Mars13:47 – 14:28
- 9☉︎ Sun14:28 – 15:10
- 10♀︎ Venus15:10 – 15:52
- 11☿︎ Mercury15:52 – 16:34
- 12☽︎ Moon16:34 – 17:15
Night
- 1♄︎ Saturn17:15 – 18:34
- 2♃︎ Jupiter18:34 – 19:52
- 3♂︎ Mars19:52 – 21:10
- 4☉︎ Sun21:10 – 22:28
- 5♀︎ Venus22:28 – 23:47
- 6☿︎ Mercury23:47 – 01:05
- 7☽︎ Moon01:05 – 02:23
- 8♄︎ Saturn02:23 – 03:41
- 9♃︎ Jupiter03:41 – 05:00
- 10♂︎ Mars05:00 – 06:18
- 11☉︎ Sun06:18 – 07:36
- 12♀︎ Venus07:36 – 08:55
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Tuesday, 22 December 2026, the Sun rises at 08:54 and sets at 17:15: the day lasts 8h 21m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:55, lasts 15h 39m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mars, from 08:54 to 09:36: 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.