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, 10 August 2025: day of the Sun
- Sunrise
- 06:56
- Sunset
- 21:25
- Next sunrise
- 06:57
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Europe/Paris).
Day
- 1☉︎ Sun06:56 – 08:08
- 2♀︎ Venus08:08 – 09:21
- 3☿︎ Mercury09:21 – 10:33
- 4☽︎ Moon10:33 – 11:46
- 5♄︎ Saturn11:46 – 12:58
- 6♃︎ Jupiter12:58 – 14:11
- 7♂︎ Mars14:11 – 15:23
- 8☉︎ Sun15:23 – 16:35
- 9♀︎ Venus16:35 – 17:48
- 10☿︎ Mercury17:48 – 19:00
- 11☽︎ Moon19:00 – 20:13
- 12♄︎ Saturn20:13 – 21:25
Night
- 1♃︎ Jupiter21:25 – 22:13
- 2♂︎ Mars22:13 – 23:01
- 3☉︎ Sun23:01 – 23:48
- 4♀︎ Venus23:48 – 00:36
- 5☿︎ Mercury00:36 – 01:24
- 6☽︎ Moon01:24 – 02:11
- 7♄︎ Saturn02:11 – 02:59
- 8♃︎ Jupiter02:59 – 03:47
- 9♂︎ Mars03:47 – 04:34
- 10☉︎ Sun04:34 – 05:22
- 11♀︎ Venus05:22 – 06:10
- 12☿︎ Mercury06:10 – 06:57
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Sunday, 10 August 2025, the Sun rises at 06:56 and sets at 21:25: the day lasts 14h 29m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 06:57, lasts 9h 32m: twelve night hours of 48 min.
Which planet rules the first hour that day?
The Sun, from 06:56 to 08:08: 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.