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, 26 December 2025: day of Venus
- Sunrise
- 08:52
- Sunset
- 17:21
- Next sunrise
- 08:52
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:52 – 09:34
- 2☿︎ Mercury09:34 – 10:16
- 3☽︎ Moon10:16 – 10:59
- 4♄︎ Saturn10:59 – 11:41
- 5♃︎ Jupiter11:41 – 12:24
- 6♂︎ Mars12:24 – 13:06
- 7☉︎ Sun13:06 – 13:49
- 8♀︎ Venus13:49 – 14:31
- 9☿︎ Mercury14:31 – 15:14
- 10☽︎ Moon15:14 – 15:56
- 11♄︎ Saturn15:56 – 16:39
- 12♃︎ Jupiter16:39 – 17:21
Night
- 1♂︎ Mars17:21 – 18:39
- 2☉︎ Sun18:39 – 19:56
- 3♀︎ Venus19:56 – 21:14
- 4☿︎ Mercury21:14 – 22:31
- 5☽︎ Moon22:31 – 23:49
- 6♄︎ Saturn23:49 – 01:07
- 7♃︎ Jupiter01:07 – 02:24
- 8♂︎ Mars02:24 – 03:42
- 9☉︎ Sun03:42 – 04:59
- 10♀︎ Venus04:59 – 06:17
- 11☿︎ Mercury06:17 – 07:34
- 12☽︎ Moon07:34 – 08:52
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Friday, 26 December 2025, the Sun rises at 08:52 and sets at 17:21: the day lasts 8h 30m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:52, lasts 15h 30m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Venus, from 08:52 to 09:34: 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.