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 Saturday, 20 December 2025: day of Saturn
- Sunrise
- 08:25
- Sunset
- 17:05
- Next sunrise
- 08:25
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:25 – 09:08
- 2♃︎ Jupiter09:08 – 09:51
- 3♂︎ Mars09:51 – 10:35
- 4☉︎ Sun10:35 – 11:18
- 5♀︎ Venus11:18 – 12:01
- 6☿︎ Mercury12:01 – 12:45
- 7☽︎ Moon12:45 – 13:28
- 8♄︎ Saturn13:28 – 14:12
- 9♃︎ Jupiter14:12 – 14:55
- 10♂︎ Mars14:55 – 15:38
- 11☉︎ Sun15:38 – 16:22
- 12♀︎ Venus16:22 – 17:05
Night
- 1☿︎ Mercury17:05 – 18:22
- 2☽︎ Moon18:22 – 19:38
- 3♄︎ Saturn19:38 – 20:55
- 4♃︎ Jupiter20:55 – 22:12
- 5♂︎ Mars22:12 – 23:28
- 6☉︎ Sun23:28 – 00:45
- 7♀︎ Venus00:45 – 02:02
- 8☿︎ Mercury02:02 – 03:18
- 9☽︎ Moon03:18 – 04:35
- 10♄︎ Saturn04:35 – 05:52
- 11♃︎ Jupiter05:52 – 07:09
- 12♂︎ Mars07:09 – 08:25
Other cities · France
Questions
How are the planetary hours calculated in Clermont-Ferrand?
On Saturday, 20 December 2025, the Sun rises at 08:25 and sets at 17:05: the day lasts 8h 40m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:25, lasts 15h 20m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Saturn, from 08:25 to 09:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.