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 Friday, 10 October 2025: day of Venus
- Sunrise
- 08:17
- Sunset
- 19:27
- Next sunrise
- 08:19
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:17 – 09:13
- 2☿︎ Mercury09:13 – 10:09
- 3☽︎ Moon10:09 – 11:05
- 4♄︎ Saturn11:05 – 12:01
- 5♃︎ Jupiter12:01 – 12:56
- 6♂︎ Mars12:56 – 13:52
- 7☉︎ Sun13:52 – 14:48
- 8♀︎ Venus14:48 – 15:44
- 9☿︎ Mercury15:44 – 16:40
- 10☽︎ Moon16:40 – 17:36
- 11♄︎ Saturn17:36 – 18:31
- 12♃︎ Jupiter18:31 – 19:27
Night
- 1♂︎ Mars19:27 – 20:32
- 2☉︎ Sun20:32 – 21:36
- 3♀︎ Venus21:36 – 22:40
- 4☿︎ Mercury22:40 – 23:44
- 5☽︎ Moon23:44 – 00:49
- 6♄︎ Saturn00:49 – 01:53
- 7♃︎ Jupiter01:53 – 02:57
- 8♂︎ Mars02:57 – 04:01
- 9☉︎ Sun04:01 – 05:06
- 10♀︎ Venus05:06 – 06:10
- 11☿︎ Mercury06:10 – 07:14
- 12☽︎ Moon07:14 – 08:19
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Friday, 10 October 2025, the Sun rises at 08:17 and sets at 19:27: the day lasts 11h 10m, that is twelve day hours of 56 min. The night, until the next sunrise at 08:19, lasts 12h 51m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Venus, from 08:17 to 09:13: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.