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, 31 January 2026: day of Saturn
- Sunrise
- 08:48
- Sunset
- 18:15
- Next sunrise
- 08:46
A day hour lasts 47 min; a night hour, 1h 13m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:48 – 09:35
- 2♃︎ Jupiter09:35 – 10:22
- 3♂︎ Mars10:22 – 11:09
- 4☉︎ Sun11:09 – 11:57
- 5♀︎ Venus11:57 – 12:44
- 6☿︎ Mercury12:44 – 13:31
- 7☽︎ Moon13:31 – 14:18
- 8♄︎ Saturn14:18 – 15:06
- 9♃︎ Jupiter15:06 – 15:53
- 10♂︎ Mars15:53 – 16:40
- 11☉︎ Sun16:40 – 17:27
- 12♀︎ Venus17:27 – 18:15
Night
- 1☿︎ Mercury18:15 – 19:27
- 2☽︎ Moon19:27 – 20:40
- 3♄︎ Saturn20:40 – 21:53
- 4♃︎ Jupiter21:53 – 23:05
- 5♂︎ Mars23:05 – 00:18
- 6☉︎ Sun00:18 – 01:31
- 7♀︎ Venus01:31 – 02:43
- 8☿︎ Mercury02:43 – 03:56
- 9☽︎ Moon03:56 – 05:08
- 10♄︎ Saturn05:08 – 06:21
- 11♃︎ Jupiter06:21 – 07:34
- 12♂︎ Mars07:34 – 08:46
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Saturday, 31 January 2026, the Sun rises at 08:48 and sets at 18:15: the day lasts 9h 27m, that is twelve day hours of 47 min. The night, until the next sunrise at 08:46, lasts 14h 32m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Saturn, from 08:48 to 09:35: 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.