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, 19 September 2026: day of Saturn
- Sunrise
- 07:48
- Sunset
- 20:10
- Next sunrise
- 07:50
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn07:48 – 08:50
- 2♃︎ Jupiter08:50 – 09:52
- 3♂︎ Mars09:52 – 10:54
- 4☉︎ Sun10:54 – 11:55
- 5♀︎ Venus11:55 – 12:57
- 6☿︎ Mercury12:57 – 13:59
- 7☽︎ Moon13:59 – 15:01
- 8♄︎ Saturn15:01 – 16:03
- 9♃︎ Jupiter16:03 – 17:04
- 10♂︎ Mars17:04 – 18:06
- 11☉︎ Sun18:06 – 19:08
- 12♀︎ Venus19:08 – 20:10
Night
- 1☿︎ Mercury20:10 – 21:08
- 2☽︎ Moon21:08 – 22:06
- 3♄︎ Saturn22:06 – 23:05
- 4♃︎ Jupiter23:05 – 00:03
- 5♂︎ Mars00:03 – 01:01
- 6☉︎ Sun01:01 – 02:00
- 7♀︎ Venus02:00 – 02:58
- 8☿︎ Mercury02:58 – 03:56
- 9☽︎ Moon03:56 – 04:55
- 10♄︎ Saturn04:55 – 05:53
- 11♃︎ Jupiter05:53 – 06:51
- 12♂︎ Mars06:51 – 07:50
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Saturday, 19 September 2026, the Sun rises at 07:48 and sets at 20:10: the day lasts 12h 21m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:50, lasts 11h 40m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Saturn, from 07:48 to 08:50: 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.