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 Wednesday, 9 September 2026: day of Mercury
- Sunrise
- 07:35
- Sunset
- 20:30
- Next sunrise
- 07:36
A day hour lasts 1h 05m; a night hour, 56 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury07:35 – 08:40
- 2☽︎ Moon08:40 – 09:44
- 3♄︎ Saturn09:44 – 10:49
- 4♃︎ Jupiter10:49 – 11:53
- 5♂︎ Mars11:53 – 12:58
- 6☉︎ Sun12:58 – 14:03
- 7♀︎ Venus14:03 – 15:07
- 8☿︎ Mercury15:07 – 16:12
- 9☽︎ Moon16:12 – 17:16
- 10♄︎ Saturn17:16 – 18:21
- 11♃︎ Jupiter18:21 – 19:25
- 12♂︎ Mars19:25 – 20:30
Night
- 1☉︎ Sun20:30 – 21:26
- 2♀︎ Venus21:26 – 22:21
- 3☿︎ Mercury22:21 – 23:17
- 4☽︎ Moon23:17 – 00:12
- 5♄︎ Saturn00:12 – 01:08
- 6♃︎ Jupiter01:08 – 02:03
- 7♂︎ Mars02:03 – 02:59
- 8☉︎ Sun02:59 – 03:54
- 9♀︎ Venus03:54 – 04:50
- 10☿︎ Mercury04:50 – 05:45
- 11☽︎ Moon05:45 – 06:41
- 12♄︎ Saturn06:41 – 07:36
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Wednesday, 9 September 2026, the Sun rises at 07:35 and sets at 20:30: the day lasts 12h 55m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 07:36, lasts 11h 06m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Mercury, from 07:35 to 08:40: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.