Planetary hours
in Le Mans.
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, 23 December 2025: day of Mars
- Sunrise
- 08:47
- Sunset
- 17:09
- Next sunrise
- 08:47
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:47 – 09:29
- 2☉︎ Sun09:29 – 10:10
- 3♀︎ Venus10:10 – 10:52
- 4☿︎ Mercury10:52 – 11:34
- 5☽︎ Moon11:34 – 12:16
- 6♄︎ Saturn12:16 – 12:58
- 7♃︎ Jupiter12:58 – 13:40
- 8♂︎ Mars13:40 – 14:22
- 9☉︎ Sun14:22 – 15:03
- 10♀︎ Venus15:03 – 15:45
- 11☿︎ Mercury15:45 – 16:27
- 12☽︎ Moon16:27 – 17:09
Night
- 1♄︎ Saturn17:09 – 18:27
- 2♃︎ Jupiter18:27 – 19:45
- 3♂︎ Mars19:45 – 21:04
- 4☉︎ Sun21:04 – 22:22
- 5♀︎ Venus22:22 – 23:40
- 6☿︎ Mercury23:40 – 00:58
- 7☽︎ Moon00:58 – 02:16
- 8♄︎ Saturn02:16 – 03:34
- 9♃︎ Jupiter03:34 – 04:53
- 10♂︎ Mars04:53 – 06:11
- 11☉︎ Sun06:11 – 07:29
- 12♀︎ Venus07:29 – 08:47
Other cities · France
Questions
How are the planetary hours calculated in Le Mans?
On Tuesday, 23 December 2025, the Sun rises at 08:47 and sets at 17:09: the day lasts 8h 22m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:47, lasts 15h 38m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mars, from 08:47 to 09:29: 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.