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, 10 January 2026: day of Saturn
- Sunrise
- 09:07
- Sunset
- 17:44
- Next sunrise
- 09:06
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn09:07 – 09:50
- 2♃︎ Jupiter09:50 – 10:33
- 3♂︎ Mars10:33 – 11:16
- 4☉︎ Sun11:16 – 11:59
- 5♀︎ Venus11:59 – 12:42
- 6☿︎ Mercury12:42 – 13:25
- 7☽︎ Moon13:25 – 14:08
- 8♄︎ Saturn14:08 – 14:51
- 9♃︎ Jupiter14:51 – 15:34
- 10♂︎ Mars15:34 – 16:17
- 11☉︎ Sun16:17 – 17:00
- 12♀︎ Venus17:00 – 17:44
Night
- 1☿︎ Mercury17:44 – 19:00
- 2☽︎ Moon19:00 – 20:17
- 3♄︎ Saturn20:17 – 21:34
- 4♃︎ Jupiter21:34 – 22:51
- 5♂︎ Mars22:51 – 00:08
- 6☉︎ Sun00:08 – 01:25
- 7♀︎ Venus01:25 – 02:42
- 8☿︎ Mercury02:42 – 03:59
- 9☽︎ Moon03:59 – 05:16
- 10♄︎ Saturn05:16 – 06:32
- 11♃︎ Jupiter06:32 – 07:49
- 12♂︎ Mars07:49 – 09:06
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Saturday, 10 January 2026, the Sun rises at 09:07 and sets at 17:44: the day lasts 8h 37m, that is twelve day hours of 43 min. The night, until the next sunrise at 09:06, lasts 15h 23m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Saturn, from 09:07 to 09:50: 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.