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 Thursday, 8 January 2026: day of Jupiter
- Sunrise
- 09:08
- Sunset
- 17:41
- Next sunrise
- 09:07
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter09:08 – 09:50
- 2♂︎ Mars09:50 – 10:33
- 3☉︎ Sun10:33 – 11:16
- 4♀︎ Venus11:16 – 11:59
- 5☿︎ Mercury11:59 – 12:42
- 6☽︎ Moon12:42 – 13:24
- 7♄︎ Saturn13:24 – 14:07
- 8♃︎ Jupiter14:07 – 14:50
- 9♂︎ Mars14:50 – 15:33
- 10☉︎ Sun15:33 – 16:15
- 11♀︎ Venus16:15 – 16:58
- 12☿︎ Mercury16:58 – 17:41
Night
- 1☽︎ Moon17:41 – 18:58
- 2♄︎ Saturn18:58 – 20:15
- 3♃︎ Jupiter20:15 – 21:33
- 4♂︎ Mars21:33 – 22:50
- 5☉︎ Sun22:50 – 00:07
- 6♀︎ Venus00:07 – 01:24
- 7☿︎ Mercury01:24 – 02:41
- 8☽︎ Moon02:41 – 03:58
- 9♄︎ Saturn03:58 – 05:16
- 10♃︎ Jupiter05:16 – 06:33
- 11♂︎ Mars06:33 – 07:50
- 12☉︎ Sun07:50 – 09:07
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Thursday, 8 January 2026, the Sun rises at 09:08 and sets at 17:41: the day lasts 8h 34m, that is twelve day hours of 43 min. The night, until the next sunrise at 09:07, lasts 15h 26m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Jupiter, from 09:08 to 09:50: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.