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 Wednesday, 10 December 2025: day of Mercury
- Sunrise
- 08:17
- Sunset
- 17:03
- Next sunrise
- 08:18
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:17 – 09:01
- 2☽︎ Moon09:01 – 09:45
- 3♄︎ Saturn09:45 – 10:29
- 4♃︎ Jupiter10:29 – 11:12
- 5♂︎ Mars11:12 – 11:56
- 6☉︎ Sun11:56 – 12:40
- 7♀︎ Venus12:40 – 13:24
- 8☿︎ Mercury13:24 – 14:07
- 9☽︎ Moon14:07 – 14:51
- 10♄︎ Saturn14:51 – 15:35
- 11♃︎ Jupiter15:35 – 16:19
- 12♂︎ Mars16:19 – 17:03
Night
- 1☉︎ Sun17:03 – 18:19
- 2♀︎ Venus18:19 – 19:35
- 3☿︎ Mercury19:35 – 20:51
- 4☽︎ Moon20:51 – 22:08
- 5♄︎ Saturn22:08 – 23:24
- 6♃︎ Jupiter23:24 – 00:40
- 7♂︎ Mars00:40 – 01:57
- 8☉︎ Sun01:57 – 03:13
- 9♀︎ Venus03:13 – 04:29
- 10☿︎ Mercury04:29 – 05:46
- 11☽︎ Moon05:46 – 07:02
- 12♄︎ Saturn07:02 – 08:18
Other cities · France
Questions
How are the planetary hours calculated in Clermont-Ferrand?
On Wednesday, 10 December 2025, the Sun rises at 08:17 and sets at 17:03: the day lasts 8h 45m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:18, lasts 15h 16m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Mercury, from 08:17 to 09:01: 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.