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 October 2026: day of Jupiter
- Sunrise
- 08:24
- Sunset
- 19:18
- Next sunrise
- 08:25
A day hour lasts 55 min; a night hour, 1h 06m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter08:24 – 09:18
- 2♂︎ Mars09:18 – 10:13
- 3☉︎ Sun10:13 – 11:07
- 4♀︎ Venus11:07 – 12:02
- 5☿︎ Mercury12:02 – 12:57
- 6☽︎ Moon12:57 – 13:51
- 7♄︎ Saturn13:51 – 14:46
- 8♃︎ Jupiter14:46 – 15:40
- 9♂︎ Mars15:40 – 16:35
- 10☉︎ Sun16:35 – 17:29
- 11♀︎ Venus17:29 – 18:24
- 12☿︎ Mercury18:24 – 19:18
Night
- 1☽︎ Moon19:18 – 20:24
- 2♄︎ Saturn20:24 – 21:30
- 3♃︎ Jupiter21:30 – 22:35
- 4♂︎ Mars22:35 – 23:41
- 5☉︎ Sun23:41 – 00:46
- 6♀︎ Venus00:46 – 01:52
- 7☿︎ Mercury01:52 – 02:57
- 8☽︎ Moon02:57 – 04:03
- 9♄︎ Saturn04:03 – 05:09
- 10♃︎ Jupiter05:09 – 06:14
- 11♂︎ Mars06:14 – 07:20
- 12☉︎ Sun07:20 – 08:25
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Thursday, 15 October 2026, the Sun rises at 08:24 and sets at 19:18: the day lasts 10h 55m, that is twelve day hours of 55 min. The night, until the next sunrise at 08:25, lasts 13h 07m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Jupiter, from 08:24 to 09:18: 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.