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, 31 December 2026: day of Jupiter
- Sunrise
- 09:09
- Sunset
- 17:32
- Next sunrise
- 09:09
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter09:09 – 09:51
- 2♂︎ Mars09:51 – 10:33
- 3☉︎ Sun10:33 – 11:15
- 4♀︎ Venus11:15 – 11:57
- 5☿︎ Mercury11:57 – 12:39
- 6☽︎ Moon12:39 – 13:21
- 7♄︎ Saturn13:21 – 14:02
- 8♃︎ Jupiter14:02 – 14:44
- 9♂︎ Mars14:44 – 15:26
- 10☉︎ Sun15:26 – 16:08
- 11♀︎ Venus16:08 – 16:50
- 12☿︎ Mercury16:50 – 17:32
Night
- 1☽︎ Moon17:32 – 18:50
- 2♄︎ Saturn18:50 – 20:08
- 3♃︎ Jupiter20:08 – 21:26
- 4♂︎ Mars21:26 – 22:44
- 5☉︎ Sun22:44 – 00:02
- 6♀︎ Venus00:02 – 01:21
- 7☿︎ Mercury01:21 – 02:39
- 8☽︎ Moon02:39 – 03:57
- 9♄︎ Saturn03:57 – 05:15
- 10♃︎ Jupiter05:15 – 06:33
- 11♂︎ Mars06:33 – 07:51
- 12☉︎ Sun07:51 – 09:09
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Thursday, 31 December 2026, the Sun rises at 09:09 and sets at 17:32: the day lasts 8h 23m, that is twelve day hours of 42 min. The night, until the next sunrise at 09:09, lasts 15h 37m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Jupiter, from 09:09 to 09:51: 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.