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 May 2025: day of Saturn
- Sunrise
- 06:36
- Sunset
- 21:29
- Next sunrise
- 06:35
A day hour lasts 1h 14m; a night hour, 45 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn06:36 – 07:50
- 2♃︎ Jupiter07:50 – 09:05
- 3♂︎ Mars09:05 – 10:19
- 4☉︎ Sun10:19 – 11:34
- 5♀︎ Venus11:34 – 12:48
- 6☿︎ Mercury12:48 – 14:03
- 7☽︎ Moon14:03 – 15:17
- 8♄︎ Saturn15:17 – 16:31
- 9♃︎ Jupiter16:31 – 17:46
- 10♂︎ Mars17:46 – 19:00
- 11☉︎ Sun19:00 – 20:15
- 12♀︎ Venus20:15 – 21:29
Night
- 1☿︎ Mercury21:29 – 22:15
- 2☽︎ Moon22:15 – 23:00
- 3♄︎ Saturn23:00 – 23:45
- 4♃︎ Jupiter23:45 – 00:31
- 5♂︎ Mars00:31 – 01:16
- 6☉︎ Sun01:16 – 02:02
- 7♀︎ Venus02:02 – 02:47
- 8☿︎ Mercury02:47 – 03:33
- 9☽︎ Moon03:33 – 04:18
- 10♄︎ Saturn04:18 – 05:04
- 11♃︎ Jupiter05:04 – 05:49
- 12♂︎ Mars05:49 – 06:35
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Saturday, 10 May 2025, the Sun rises at 06:36 and sets at 21:29: the day lasts 14h 53m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 06:35, lasts 9h 06m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Saturn, from 06:36 to 07:50: 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.