Planetary hours
in Nantes.
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, 11 October 2025: day of Saturn
- Sunrise
- 08:19
- Sunset
- 19:25
- Next sunrise
- 08:20
A day hour lasts 56 min; a night hour, 1h 05m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:19 – 09:14
- 2♃︎ Jupiter09:14 – 10:10
- 3♂︎ Mars10:10 – 11:05
- 4☉︎ Sun11:05 – 12:01
- 5♀︎ Venus12:01 – 12:56
- 6☿︎ Mercury12:56 – 13:52
- 7☽︎ Moon13:52 – 14:48
- 8♄︎ Saturn14:48 – 15:43
- 9♃︎ Jupiter15:43 – 16:39
- 10♂︎ Mars16:39 – 17:34
- 11☉︎ Sun17:34 – 18:30
- 12♀︎ Venus18:30 – 19:25
Night
- 1☿︎ Mercury19:25 – 20:30
- 2☽︎ Moon20:30 – 21:35
- 3♄︎ Saturn21:35 – 22:39
- 4♃︎ Jupiter22:39 – 23:44
- 5♂︎ Mars23:44 – 00:48
- 6☉︎ Sun00:48 – 01:53
- 7♀︎ Venus01:53 – 02:57
- 8☿︎ Mercury02:57 – 04:02
- 9☽︎ Moon04:02 – 05:06
- 10♄︎ Saturn05:06 – 06:11
- 11♃︎ Jupiter06:11 – 07:15
- 12♂︎ Mars07:15 – 08:20
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Saturday, 11 October 2025, the Sun rises at 08:19 and sets at 19:25: the day lasts 11h 07m, that is twelve day hours of 56 min. The night, until the next sunrise at 08:20, lasts 12h 54m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Saturn, from 08:19 to 09:14: 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.