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 January 2026: day of the Moon
- Sunrise
- 08:50
- Sunset
- 17:39
- Next sunrise
- 08:49
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).
Day
- 1☽︎ Moon08:50 – 09:34
- 2♄︎ Saturn09:34 – 10:18
- 3♃︎ Jupiter10:18 – 11:02
- 4♂︎ Mars11:02 – 11:46
- 5☉︎ Sun11:46 – 12:30
- 6♀︎ Venus12:30 – 13:14
- 7☿︎ Mercury13:14 – 13:58
- 8☽︎ Moon13:58 – 14:42
- 9♄︎ Saturn14:42 – 15:26
- 10♃︎ Jupiter15:26 – 16:11
- 11♂︎ Mars16:11 – 16:55
- 12☉︎ Sun16:55 – 17:39
Night
- 1♀︎ Venus17:39 – 18:55
- 2☿︎ Mercury18:55 – 20:10
- 3☽︎ Moon20:10 – 21:26
- 4♄︎ Saturn21:26 – 22:42
- 5♃︎ Jupiter22:42 – 23:58
- 6♂︎ Mars23:58 – 01:14
- 7☉︎ Sun01:14 – 02:30
- 8♀︎ Venus02:30 – 03:46
- 9☿︎ Mercury03:46 – 05:01
- 10☽︎ Moon05:01 – 06:17
- 11♄︎ Saturn06:17 – 07:33
- 12♃︎ Jupiter07:33 – 08:49
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Monday, 12 January 2026, the Sun rises at 08:50 and sets at 17:39: the day lasts 8h 49m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:49, lasts 15h 10m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
The Moon, from 08:50 to 09:34: 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.