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 Monday, 20 July 2026: day of the Moon
- Sunrise
- 06:30
- Sunset
- 21:53
- Next sunrise
- 06:31
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1☽︎ Moon06:30 – 07:47
- 2♄︎ Saturn07:47 – 09:04
- 3♃︎ Jupiter09:04 – 10:21
- 4♂︎ Mars10:21 – 11:38
- 5☉︎ Sun11:38 – 12:55
- 6♀︎ Venus12:55 – 14:12
- 7☿︎ Mercury14:12 – 15:29
- 8☽︎ Moon15:29 – 16:46
- 9♄︎ Saturn16:46 – 18:03
- 10♃︎ Jupiter18:03 – 19:20
- 11♂︎ Mars19:20 – 20:36
- 12☉︎ Sun20:36 – 21:53
Night
- 1♀︎ Venus21:53 – 22:37
- 2☿︎ Mercury22:37 – 23:20
- 3☽︎ Moon23:20 – 00:03
- 4♄︎ Saturn00:03 – 00:46
- 5♃︎ Jupiter00:46 – 01:29
- 6♂︎ Mars01:29 – 02:12
- 7☉︎ Sun02:12 – 02:55
- 8♀︎ Venus02:55 – 03:39
- 9☿︎ Mercury03:39 – 04:22
- 10☽︎ Moon04:22 – 05:05
- 11♄︎ Saturn05:05 – 05:48
- 12♃︎ Jupiter05:48 – 06:31
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Monday, 20 July 2026, the Sun rises at 06:30 and sets at 21:53: the day lasts 15h 23m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:31, lasts 8h 38m: twelve night hours of 43 min.
Which planet rules the first hour that day?
The Moon, from 06:30 to 07:47: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.