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, 22 August 2026: day of Saturn
- Sunrise
- 07:11
- Sunset
- 21:05
- Next sunrise
- 07:13
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn07:11 – 08:21
- 2♃︎ Jupiter08:21 – 09:30
- 3♂︎ Mars09:30 – 10:40
- 4☉︎ Sun10:40 – 11:49
- 5♀︎ Venus11:49 – 12:59
- 6☿︎ Mercury12:59 – 14:08
- 7☽︎ Moon14:08 – 15:18
- 8♄︎ Saturn15:18 – 16:27
- 9♃︎ Jupiter16:27 – 17:36
- 10♂︎ Mars17:36 – 18:46
- 11☉︎ Sun18:46 – 19:55
- 12♀︎ Venus19:55 – 21:05
Night
- 1☿︎ Mercury21:05 – 21:55
- 2☽︎ Moon21:55 – 22:46
- 3♄︎ Saturn22:46 – 23:37
- 4♃︎ Jupiter23:37 – 00:27
- 5♂︎ Mars00:27 – 01:18
- 6☉︎ Sun01:18 – 02:09
- 7♀︎ Venus02:09 – 02:59
- 8☿︎ Mercury02:59 – 03:50
- 9☽︎ Moon03:50 – 04:41
- 10♄︎ Saturn04:41 – 05:31
- 11♃︎ Jupiter05:31 – 06:22
- 12♂︎ Mars06:22 – 07:13
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Saturday, 22 August 2026, the Sun rises at 07:11 and sets at 21:05: the day lasts 13h 53m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 07:13, lasts 10h 08m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Saturn, from 07:11 to 08:21: 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.