Planetary hours
in Clermont-Ferrand.
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, 12 December 2025: day of Venus
- Sunrise
- 08:19
- Sunset
- 17:03
- Next sunrise
- 08:20
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:19 – 09:03
- 2☿︎ Mercury09:03 – 09:46
- 3☽︎ Moon09:46 – 10:30
- 4♄︎ Saturn10:30 – 11:14
- 5♃︎ Jupiter11:14 – 11:57
- 6♂︎ Mars11:57 – 12:41
- 7☉︎ Sun12:41 – 13:25
- 8♀︎ Venus13:25 – 14:08
- 9☿︎ Mercury14:08 – 14:52
- 10☽︎ Moon14:52 – 15:35
- 11♄︎ Saturn15:35 – 16:19
- 12♃︎ Jupiter16:19 – 17:03
Night
- 1♂︎ Mars17:03 – 18:19
- 2☉︎ Sun18:19 – 19:36
- 3♀︎ Venus19:36 – 20:52
- 4☿︎ Mercury20:52 – 22:08
- 5☽︎ Moon22:08 – 23:25
- 6♄︎ Saturn23:25 – 00:41
- 7♃︎ Jupiter00:41 – 01:58
- 8♂︎ Mars01:58 – 03:14
- 9☉︎ Sun03:14 – 04:31
- 10♀︎ Venus04:31 – 05:47
- 11☿︎ Mercury05:47 – 07:03
- 12☽︎ Moon07:03 – 08:20
Other cities · France
Questions
How are the planetary hours calculated in Clermont-Ferrand?
On Friday, 12 December 2025, the Sun rises at 08:19 and sets at 17:03: the day lasts 8h 44m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:20, lasts 15h 17m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Venus, from 08:19 to 09:03: 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.