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 Thursday, 17 July 2025: day of Jupiter
- Sunrise
- 06:27
- Sunset
- 21:56
- Next sunrise
- 06:28
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter06:27 – 07:45
- 2♂︎ Mars07:45 – 09:02
- 3☉︎ Sun09:02 – 10:19
- 4♀︎ Venus10:19 – 11:37
- 5☿︎ Mercury11:37 – 12:54
- 6☽︎ Moon12:54 – 14:12
- 7♄︎ Saturn14:12 – 15:29
- 8♃︎ Jupiter15:29 – 16:46
- 9♂︎ Mars16:46 – 18:04
- 10☉︎ Sun18:04 – 19:21
- 11♀︎ Venus19:21 – 20:39
- 12☿︎ Mercury20:39 – 21:56
Night
- 1☽︎ Moon21:56 – 22:39
- 2♄︎ Saturn22:39 – 23:21
- 3♃︎ Jupiter23:21 – 00:04
- 4♂︎ Mars00:04 – 00:47
- 5☉︎ Sun00:47 – 01:29
- 6♀︎ Venus01:29 – 02:12
- 7☿︎ Mercury02:12 – 02:55
- 8☽︎ Moon02:55 – 03:38
- 9♄︎ Saturn03:38 – 04:20
- 10♃︎ Jupiter04:20 – 05:03
- 11♂︎ Mars05:03 – 05:46
- 12☉︎ Sun05:46 – 06:28
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Thursday, 17 July 2025, the Sun rises at 06:27 and sets at 21:56: the day lasts 15h 29m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:28, lasts 8h 32m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Jupiter, from 06:27 to 07:45: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.