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, 31 August 2025: day of the Sun
- Sunrise
- 07:24
- Sunset
- 20:47
- Next sunrise
- 07:25
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Europe/Paris).
Day
- 1☉︎ Sun07:24 – 08:31
- 2♀︎ Venus08:31 – 09:38
- 3☿︎ Mercury09:38 – 10:45
- 4☽︎ Moon10:45 – 11:52
- 5♄︎ Saturn11:52 – 12:59
- 6♃︎ Jupiter12:59 – 14:05
- 7♂︎ Mars14:05 – 15:12
- 8☉︎ Sun15:12 – 16:19
- 9♀︎ Venus16:19 – 17:26
- 10☿︎ Mercury17:26 – 18:33
- 11☽︎ Moon18:33 – 19:40
- 12♄︎ Saturn19:40 – 20:47
Night
- 1♃︎ Jupiter20:47 – 21:40
- 2♂︎ Mars21:40 – 22:34
- 3☉︎ Sun22:34 – 23:27
- 4♀︎ Venus23:27 – 00:20
- 5☿︎ Mercury00:20 – 01:13
- 6☽︎ Moon01:13 – 02:06
- 7♄︎ Saturn02:06 – 02:59
- 8♃︎ Jupiter02:59 – 03:52
- 9♂︎ Mars03:52 – 04:46
- 10☉︎ Sun04:46 – 05:39
- 11♀︎ Venus05:39 – 06:32
- 12☿︎ Mercury06:32 – 07:25
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Sunday, 31 August 2025, the Sun rises at 07:24 and sets at 20:47: the day lasts 13h 24m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 07:25, lasts 10h 38m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Sun, from 07:24 to 08:31: 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.