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 January 2026: day of Saturn
- Sunrise
- 08:50
- Sunset
- 17:36
- Next sunrise
- 08:50
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:50 – 09:34
- 2♃︎ Jupiter09:34 – 10:18
- 3♂︎ Mars10:18 – 11:02
- 4☉︎ Sun11:02 – 11:46
- 5♀︎ Venus11:46 – 12:30
- 6☿︎ Mercury12:30 – 13:13
- 7☽︎ Moon13:13 – 13:57
- 8♄︎ Saturn13:57 – 14:41
- 9♃︎ Jupiter14:41 – 15:25
- 10♂︎ Mars15:25 – 16:09
- 11☉︎ Sun16:09 – 16:52
- 12♀︎ Venus16:52 – 17:36
Night
- 1☿︎ Mercury17:36 – 18:52
- 2☽︎ Moon18:52 – 20:09
- 3♄︎ Saturn20:09 – 21:25
- 4♃︎ Jupiter21:25 – 22:41
- 5♂︎ Mars22:41 – 23:57
- 6☉︎ Sun23:57 – 01:13
- 7♀︎ Venus01:13 – 02:29
- 8☿︎ Mercury02:29 – 03:45
- 9☽︎ Moon03:45 – 05:02
- 10♄︎ Saturn05:02 – 06:18
- 11♃︎ Jupiter06:18 – 07:34
- 12♂︎ Mars07:34 – 08:50
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Saturday, 10 January 2026, the Sun rises at 08:50 and sets at 17:36: the day lasts 8h 46m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:50, lasts 15h 14m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Saturn, 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: 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.