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, 31 December 2026: day of Jupiter
- Sunrise
- 08:52
- Sunset
- 17:25
- Next sunrise
- 08:52
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter08:52 – 09:35
- 2♂︎ Mars09:35 – 10:18
- 3☉︎ Sun10:18 – 11:01
- 4♀︎ Venus11:01 – 11:43
- 5☿︎ Mercury11:43 – 12:26
- 6☽︎ Moon12:26 – 13:09
- 7♄︎ Saturn13:09 – 13:51
- 8♃︎ Jupiter13:51 – 14:34
- 9♂︎ Mars14:34 – 15:17
- 10☉︎ Sun15:17 – 16:00
- 11♀︎ Venus16:00 – 16:42
- 12☿︎ Mercury16:42 – 17:25
Night
- 1☽︎ Moon17:25 – 18:42
- 2♄︎ Saturn18:42 – 20:00
- 3♃︎ Jupiter20:00 – 21:17
- 4♂︎ Mars21:17 – 22:34
- 5☉︎ Sun22:34 – 23:52
- 6♀︎ Venus23:52 – 01:09
- 7☿︎ Mercury01:09 – 02:26
- 8☽︎ Moon02:26 – 03:43
- 9♄︎ Saturn03:43 – 05:01
- 10♃︎ Jupiter05:01 – 06:18
- 11♂︎ Mars06:18 – 07:35
- 12☉︎ Sun07:35 – 08:52
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Thursday, 31 December 2026, the Sun rises at 08:52 and sets at 17:25: the day lasts 8h 33m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:52, lasts 15h 27m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Jupiter, from 08:52 to 09:35: 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.