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 Sunday, 23 November 2025: day of the Sun
- Sunrise
- 08:21
- Sunset
- 17:23
- Next sunrise
- 08:23
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1☉︎ Sun08:21 – 09:06
- 2♀︎ Venus09:06 – 09:51
- 3☿︎ Mercury09:51 – 10:37
- 4☽︎ Moon10:37 – 11:22
- 5♄︎ Saturn11:22 – 12:07
- 6♃︎ Jupiter12:07 – 12:52
- 7♂︎ Mars12:52 – 13:37
- 8☉︎ Sun13:37 – 14:22
- 9♀︎ Venus14:22 – 15:07
- 10☿︎ Mercury15:07 – 15:52
- 11☽︎ Moon15:52 – 16:38
- 12♄︎ Saturn16:38 – 17:23
Night
- 1♃︎ Jupiter17:23 – 18:38
- 2♂︎ Mars18:38 – 19:53
- 3☉︎ Sun19:53 – 21:08
- 4♀︎ Venus21:08 – 22:23
- 5☿︎ Mercury22:23 – 23:38
- 6☽︎ Moon23:38 – 00:53
- 7♄︎ Saturn00:53 – 02:08
- 8♃︎ Jupiter02:08 – 03:23
- 9♂︎ Mars03:23 – 04:38
- 10☉︎ Sun04:38 – 05:53
- 11♀︎ Venus05:53 – 07:08
- 12☿︎ Mercury07:08 – 08:23
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Sunday, 23 November 2025, the Sun rises at 08:21 and sets at 17:23: the day lasts 9h 01m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:23, lasts 15h 00m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
The Sun, from 08:21 to 09:06: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.