Planetary hours
in Brest.
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, 6 December 2025: day of Saturn
- Sunrise
- 08:54
- Sunset
- 17:23
- Next sunrise
- 08:55
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:54 – 09:36
- 2♃︎ Jupiter09:36 – 10:19
- 3♂︎ Mars10:19 – 11:01
- 4☉︎ Sun11:01 – 11:44
- 5♀︎ Venus11:44 – 12:26
- 6☿︎ Mercury12:26 – 13:08
- 7☽︎ Moon13:08 – 13:51
- 8♄︎ Saturn13:51 – 14:33
- 9♃︎ Jupiter14:33 – 15:16
- 10♂︎ Mars15:16 – 15:58
- 11☉︎ Sun15:58 – 16:41
- 12♀︎ Venus16:41 – 17:23
Night
- 1☿︎ Mercury17:23 – 18:41
- 2☽︎ Moon18:41 – 19:58
- 3♄︎ Saturn19:58 – 21:16
- 4♃︎ Jupiter21:16 – 22:34
- 5♂︎ Mars22:34 – 23:51
- 6☉︎ Sun23:51 – 01:09
- 7♀︎ Venus01:09 – 02:27
- 8☿︎ Mercury02:27 – 03:44
- 9☽︎ Moon03:44 – 05:02
- 10♄︎ Saturn05:02 – 06:20
- 11♃︎ Jupiter06:20 – 07:37
- 12♂︎ Mars07:37 – 08:55
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Saturday, 6 December 2025, the Sun rises at 08:54 and sets at 17:23: the day lasts 8h 29m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:55, lasts 15h 32m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Saturn, from 08:54 to 09:36: 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.