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, 10 October 2026: day of Saturn
- Sunrise
- 08:17
- Sunset
- 19:28
- Next sunrise
- 08:18
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:17 – 09:13
- 2♃︎ Jupiter09:13 – 10:09
- 3♂︎ Mars10:09 – 11:05
- 4☉︎ Sun11:05 – 12:00
- 5♀︎ Venus12:00 – 12:56
- 6☿︎ Mercury12:56 – 13:52
- 7☽︎ Moon13:52 – 14:48
- 8♄︎ Saturn14:48 – 15:44
- 9♃︎ Jupiter15:44 – 16:40
- 10♂︎ Mars16:40 – 17:36
- 11☉︎ Sun17:36 – 18:32
- 12♀︎ Venus18:32 – 19:28
Night
- 1☿︎ Mercury19:28 – 20:32
- 2☽︎ Moon20:32 – 21:36
- 3♄︎ Saturn21:36 – 22:40
- 4♃︎ Jupiter22:40 – 23:45
- 5♂︎ Mars23:45 – 00:49
- 6☉︎ Sun00:49 – 01:53
- 7♀︎ Venus01:53 – 02:57
- 8☿︎ Mercury02:57 – 04:01
- 9☽︎ Moon04:01 – 05:06
- 10♄︎ Saturn05:06 – 06:10
- 11♃︎ Jupiter06:10 – 07:14
- 12♂︎ Mars07:14 – 08:18
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Saturday, 10 October 2026, the Sun rises at 08:17 and sets at 19:28: the day lasts 11h 11m, that is twelve day hours of 56 min. The night, until the next sunrise at 08:18, lasts 12h 50m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Saturn, from 08:17 to 09:13: 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.