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 Saturday, 13 December 2025: day of Saturn
- Sunrise
- 08:34
- Sunset
- 17:11
- Next sunrise
- 08:35
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:34 – 09:17
- 2♃︎ Jupiter09:17 – 10:00
- 3♂︎ Mars10:00 – 10:43
- 4☉︎ Sun10:43 – 11:26
- 5♀︎ Venus11:26 – 12:09
- 6☿︎ Mercury12:09 – 12:52
- 7☽︎ Moon12:52 – 13:35
- 8♄︎ Saturn13:35 – 14:18
- 9♃︎ Jupiter14:18 – 15:02
- 10♂︎ Mars15:02 – 15:45
- 11☉︎ Sun15:45 – 16:28
- 12♀︎ Venus16:28 – 17:11
Night
- 1☿︎ Mercury17:11 – 18:28
- 2☽︎ Moon18:28 – 19:45
- 3♄︎ Saturn19:45 – 21:02
- 4♃︎ Jupiter21:02 – 22:19
- 5♂︎ Mars22:19 – 23:36
- 6☉︎ Sun23:36 – 00:53
- 7♀︎ Venus00:53 – 02:10
- 8☿︎ Mercury02:10 – 03:27
- 9☽︎ Moon03:27 – 04:44
- 10♄︎ Saturn04:44 – 06:01
- 11♃︎ Jupiter06:01 – 07:18
- 12♂︎ Mars07:18 – 08:35
Other cities · France
Questions
How are the planetary hours calculated in Poitiers?
On Saturday, 13 December 2025, the Sun rises at 08:34 and sets at 17:11: the day lasts 8h 37m, that is twelve day hours of 43 min. The night, until the next sunrise at 08:35, lasts 15h 24m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Saturn, from 08:34 to 09:17: 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.