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 Thursday, 17 September 2026: day of Jupiter
- Sunrise
- 07:38
- Sunset
- 20:07
- Next sunrise
- 07:40
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter07:38 – 08:41
- 2♂︎ Mars08:41 – 09:43
- 3☉︎ Sun09:43 – 10:46
- 4♀︎ Venus10:46 – 11:48
- 5☿︎ Mercury11:48 – 12:50
- 6☽︎ Moon12:50 – 13:53
- 7♄︎ Saturn13:53 – 14:55
- 8♃︎ Jupiter14:55 – 15:58
- 9♂︎ Mars15:58 – 17:00
- 10☉︎ Sun17:00 – 18:02
- 11♀︎ Venus18:02 – 19:05
- 12☿︎ Mercury19:05 – 20:07
Night
- 1☽︎ Moon20:07 – 21:05
- 2♄︎ Saturn21:05 – 22:03
- 3♃︎ Jupiter22:03 – 23:00
- 4♂︎ Mars23:00 – 23:58
- 5☉︎ Sun23:58 – 00:56
- 6♀︎ Venus00:56 – 01:53
- 7☿︎ Mercury01:53 – 02:51
- 8☽︎ Moon02:51 – 03:49
- 9♄︎ Saturn03:49 – 04:47
- 10♃︎ Jupiter04:47 – 05:44
- 11♂︎ Mars05:44 – 06:42
- 12☉︎ Sun06:42 – 07:40
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Questions
How are the planetary hours calculated in Le Mans?
On Thursday, 17 September 2026, the Sun rises at 07:38 and sets at 20:07: the day lasts 12h 29m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:40, lasts 11h 33m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Jupiter, from 07:38 to 08:41: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.