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 Tuesday, 8 September 2026: day of Mars
- Sunrise
- 07:34
- Sunset
- 20:32
- Next sunrise
- 07:35
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:34 – 08:39
- 2☉︎ Sun08:39 – 09:44
- 3♀︎ Venus09:44 – 10:48
- 4☿︎ Mercury10:48 – 11:53
- 5☽︎ Moon11:53 – 12:58
- 6♄︎ Saturn12:58 – 14:03
- 7♃︎ Jupiter14:03 – 15:08
- 8♂︎ Mars15:08 – 16:13
- 9☉︎ Sun16:13 – 17:17
- 10♀︎ Venus17:17 – 18:22
- 11☿︎ Mercury18:22 – 19:27
- 12☽︎ Moon19:27 – 20:32
Night
- 1♄︎ Saturn20:32 – 21:27
- 2♃︎ Jupiter21:27 – 22:23
- 3♂︎ Mars22:23 – 23:18
- 4☉︎ Sun23:18 – 00:13
- 5♀︎ Venus00:13 – 01:08
- 6☿︎ Mercury01:08 – 02:04
- 7☽︎ Moon02:04 – 02:59
- 8♄︎ Saturn02:59 – 03:54
- 9♃︎ Jupiter03:54 – 04:49
- 10♂︎ Mars04:49 – 05:45
- 11☉︎ Sun05:45 – 06:40
- 12♀︎ Venus06:40 – 07:35
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Tuesday, 8 September 2026, the Sun rises at 07:34 and sets at 20:32: the day lasts 12h 58m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 07:35, lasts 11h 03m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mars, from 07:34 to 08:39: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.