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, 5 September 2026: day of Saturn
- Sunrise
- 07:30
- Sunset
- 20:38
- Next sunrise
- 07:31
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn07:30 – 08:36
- 2♃︎ Jupiter08:36 – 09:41
- 3♂︎ Mars09:41 – 10:47
- 4☉︎ Sun10:47 – 11:53
- 5♀︎ Venus11:53 – 12:58
- 6☿︎ Mercury12:58 – 14:04
- 7☽︎ Moon14:04 – 15:10
- 8♄︎ Saturn15:10 – 16:15
- 9♃︎ Jupiter16:15 – 17:21
- 10♂︎ Mars17:21 – 18:27
- 11☉︎ Sun18:27 – 19:32
- 12♀︎ Venus19:32 – 20:38
Night
- 1☿︎ Mercury20:38 – 21:32
- 2☽︎ Moon21:32 – 22:27
- 3♄︎ Saturn22:27 – 23:21
- 4♃︎ Jupiter23:21 – 00:16
- 5♂︎ Mars00:16 – 01:10
- 6☉︎ Sun01:10 – 02:05
- 7♀︎ Venus02:05 – 02:59
- 8☿︎ Mercury02:59 – 03:53
- 9☽︎ Moon03:53 – 04:48
- 10♄︎ Saturn04:48 – 05:42
- 11♃︎ Jupiter05:42 – 06:37
- 12♂︎ Mars06:37 – 07:31
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Saturday, 5 September 2026, the Sun rises at 07:30 and sets at 20:38: the day lasts 13h 08m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 07:31, lasts 10h 53m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Saturn, from 07:30 to 08:36: 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.