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 Monday, 12 October 2026: day of the Moon
- Sunrise
- 08:20
- Sunset
- 19:24
- Next sunrise
- 08:21
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Europe/Paris).
Day
- 1☽︎ Moon08:20 – 09:15
- 2♄︎ Saturn09:15 – 10:10
- 3♃︎ Jupiter10:10 – 11:06
- 4♂︎ Mars11:06 – 12:01
- 5☉︎ Sun12:01 – 12:56
- 6♀︎ Venus12:56 – 13:52
- 7☿︎ Mercury13:52 – 14:47
- 8☽︎ Moon14:47 – 15:43
- 9♄︎ Saturn15:43 – 16:38
- 10♃︎ Jupiter16:38 – 17:33
- 11♂︎ Mars17:33 – 18:29
- 12☉︎ Sun18:29 – 19:24
Night
- 1♀︎ Venus19:24 – 20:29
- 2☿︎ Mercury20:29 – 21:33
- 3☽︎ Moon21:33 – 22:38
- 4♄︎ Saturn22:38 – 23:43
- 5♃︎ Jupiter23:43 – 00:48
- 6♂︎ Mars00:48 – 01:52
- 7☉︎ Sun01:52 – 02:57
- 8♀︎ Venus02:57 – 04:02
- 9☿︎ Mercury04:02 – 05:07
- 10☽︎ Moon05:07 – 06:11
- 11♄︎ Saturn06:11 – 07:16
- 12♃︎ Jupiter07:16 – 08:21
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Monday, 12 October 2026, the Sun rises at 08:20 and sets at 19:24: the day lasts 11h 04m, that is twelve day hours of 55 min. The night, until the next sunrise at 08:21, lasts 12h 57m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
The Moon, from 08:20 to 09:15: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.