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, 4 December 2026: day of Venus
- Sunrise
- 08:35
- Sunset
- 17:17
- Next sunrise
- 08:36
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:35 – 09:18
- 2☿︎ Mercury09:18 – 10:02
- 3☽︎ Moon10:02 – 10:45
- 4♄︎ Saturn10:45 – 11:29
- 5♃︎ Jupiter11:29 – 12:12
- 6♂︎ Mars12:12 – 12:56
- 7☉︎ Sun12:56 – 13:39
- 8♀︎ Venus13:39 – 14:23
- 9☿︎ Mercury14:23 – 15:06
- 10☽︎ Moon15:06 – 15:50
- 11♄︎ Saturn15:50 – 16:33
- 12♃︎ Jupiter16:33 – 17:17
Night
- 1♂︎ Mars17:17 – 18:33
- 2☉︎ Sun18:33 – 19:50
- 3♀︎ Venus19:50 – 21:06
- 4☿︎ Mercury21:06 – 22:23
- 5☽︎ Moon22:23 – 23:40
- 6♄︎ Saturn23:40 – 00:56
- 7♃︎ Jupiter00:56 – 02:13
- 8♂︎ Mars02:13 – 03:30
- 9☉︎ Sun03:30 – 04:46
- 10♀︎ Venus04:46 – 06:03
- 11☿︎ Mercury06:03 – 07:19
- 12☽︎ Moon07:19 – 08:36
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Friday, 4 December 2026, the Sun rises at 08:35 and sets at 17:17: the day lasts 8h 42m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:36, lasts 15h 19m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Venus, from 08:35 to 09:18: 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.