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 Saturday, 20 September 2025: day of Saturn
- Sunrise
- 07:43
- Sunset
- 20:00
- Next sunrise
- 07:44
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn07:43 – 08:44
- 2♃︎ Jupiter08:44 – 09:46
- 3♂︎ Mars09:46 – 10:47
- 4☉︎ Sun10:47 – 11:49
- 5♀︎ Venus11:49 – 12:50
- 6☿︎ Mercury12:50 – 13:52
- 7☽︎ Moon13:52 – 14:53
- 8♄︎ Saturn14:53 – 15:55
- 9♃︎ Jupiter15:55 – 16:56
- 10♂︎ Mars16:56 – 17:57
- 11☉︎ Sun17:57 – 18:59
- 12♀︎ Venus18:59 – 20:00
Night
- 1☿︎ Mercury20:00 – 20:59
- 2☽︎ Moon20:59 – 21:58
- 3♄︎ Saturn21:58 – 22:56
- 4♃︎ Jupiter22:56 – 23:55
- 5♂︎ Mars23:55 – 00:54
- 6☉︎ Sun00:54 – 01:52
- 7♀︎ Venus01:52 – 02:51
- 8☿︎ Mercury02:51 – 03:50
- 9☽︎ Moon03:50 – 04:48
- 10♄︎ Saturn04:48 – 05:47
- 11♃︎ Jupiter05:47 – 06:45
- 12♂︎ Mars06:45 – 07:44
Other cities · France
Questions
How are the planetary hours calculated in Le Mans?
On Saturday, 20 September 2025, the Sun rises at 07:43 and sets at 20:00: the day lasts 12h 18m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 07:44, lasts 11h 44m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Saturn, from 07:43 to 08:44: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.