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, 15 May 2025: day of Jupiter
- Sunrise
- 06:29
- Sunset
- 21:35
- Next sunrise
- 06:28
A day hour lasts 1h 15m; a night hour, 44 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter06:29 – 07:45
- 2♂︎ Mars07:45 – 09:00
- 3☉︎ Sun09:00 – 10:16
- 4♀︎ Venus10:16 – 11:31
- 5☿︎ Mercury11:31 – 12:47
- 6☽︎ Moon12:47 – 14:02
- 7♄︎ Saturn14:02 – 15:18
- 8♃︎ Jupiter15:18 – 16:33
- 9♂︎ Mars16:33 – 17:49
- 10☉︎ Sun17:49 – 19:04
- 11♀︎ Venus19:04 – 20:20
- 12☿︎ Mercury20:20 – 21:35
Night
- 1☽︎ Moon21:35 – 22:20
- 2♄︎ Saturn22:20 – 23:04
- 3♃︎ Jupiter23:04 – 23:49
- 4♂︎ Mars23:49 – 00:33
- 5☉︎ Sun00:33 – 01:17
- 6♀︎ Venus01:17 – 02:02
- 7☿︎ Mercury02:02 – 02:46
- 8☽︎ Moon02:46 – 03:31
- 9♄︎ Saturn03:31 – 04:15
- 10♃︎ Jupiter04:15 – 04:59
- 11♂︎ Mars04:59 – 05:44
- 12☉︎ Sun05:44 – 06:28
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Thursday, 15 May 2025, the Sun rises at 06:29 and sets at 21:35: the day lasts 15h 06m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 06:28, lasts 8h 53m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Jupiter, from 06:29 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.