Planetary hours
in Poitiers.
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
- 08:31
- Sunset
- 17:11
- Next sunrise
- 08:32
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:31 – 09:15
- 2☽︎ Moon09:15 – 09:58
- 3♄︎ Saturn09:58 – 10:41
- 4♃︎ Jupiter10:41 – 11:24
- 5♂︎ Mars11:24 – 12:08
- 6☉︎ Sun12:08 – 12:51
- 7♀︎ Venus12:51 – 13:34
- 8☿︎ Mercury13:34 – 14:17
- 9☽︎ Moon14:17 – 15:01
- 10♄︎ Saturn15:01 – 15:44
- 11♃︎ Jupiter15:44 – 16:27
- 12♂︎ Mars16:27 – 17:11
Night
- 1☉︎ Sun17:11 – 18:27
- 2♀︎ Venus18:27 – 19:44
- 3☿︎ Mercury19:44 – 21:01
- 4☽︎ Moon21:01 – 22:18
- 5♄︎ Saturn22:18 – 23:35
- 6♃︎ Jupiter23:35 – 00:51
- 7♂︎ Mars00:51 – 02:08
- 8☉︎ Sun02:08 – 03:25
- 9♀︎ Venus03:25 – 04:42
- 10☿︎ Mercury04:42 – 05:59
- 11☽︎ Moon05:59 – 07:15
- 12♄︎ Saturn07:15 – 08:32
Other cities · France
Questions
How are the planetary hours calculated in Poitiers?
On Wednesday, 10 December 2025, the Sun rises at 08:31 and sets at 17:11: the day lasts 8h 39m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:32, lasts 15h 22m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mercury, from 08:31 to 09:15: 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.