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, 23 April 2026: day of Jupiter
- Sunrise
- 07:03
- Sunset
- 21:06
- Next sunrise
- 07:02
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter07:03 – 08:13
- 2♂︎ Mars08:13 – 09:24
- 3☉︎ Sun09:24 – 10:34
- 4♀︎ Venus10:34 – 11:44
- 5☿︎ Mercury11:44 – 12:54
- 6☽︎ Moon12:54 – 14:04
- 7♄︎ Saturn14:04 – 15:15
- 8♃︎ Jupiter15:15 – 16:25
- 9♂︎ Mars16:25 – 17:35
- 10☉︎ Sun17:35 – 18:45
- 11♀︎ Venus18:45 – 19:55
- 12☿︎ Mercury19:55 – 21:06
Night
- 1☽︎ Moon21:06 – 21:55
- 2♄︎ Saturn21:55 – 22:45
- 3♃︎ Jupiter22:45 – 23:35
- 4♂︎ Mars23:35 – 00:24
- 5☉︎ Sun00:24 – 01:14
- 6♀︎ Venus01:14 – 02:04
- 7☿︎ Mercury02:04 – 02:53
- 8☽︎ Moon02:53 – 03:43
- 9♄︎ Saturn03:43 – 04:33
- 10♃︎ Jupiter04:33 – 05:22
- 11♂︎ Mars05:22 – 06:12
- 12☉︎ Sun06:12 – 07:02
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Thursday, 23 April 2026, the Sun rises at 07:03 and sets at 21:06: the day lasts 14h 02m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 07:02, lasts 9h 56m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Jupiter, from 07:03 to 08:13: 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.