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 Tuesday, 29 December 2026: day of Mars
- Sunrise
- 09:09
- Sunset
- 17:30
- Next sunrise
- 09:09
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♂︎ Mars09:09 – 09:51
- 2☉︎ Sun09:51 – 10:32
- 3♀︎ Venus10:32 – 11:14
- 4☿︎ Mercury11:14 – 11:56
- 5☽︎ Moon11:56 – 12:38
- 6♄︎ Saturn12:38 – 13:20
- 7♃︎ Jupiter13:20 – 14:01
- 8♂︎ Mars14:01 – 14:43
- 9☉︎ Sun14:43 – 15:25
- 10♀︎ Venus15:25 – 16:07
- 11☿︎ Mercury16:07 – 16:49
- 12☽︎ Moon16:49 – 17:30
Night
- 1♄︎ Saturn17:30 – 18:49
- 2♃︎ Jupiter18:49 – 20:07
- 3♂︎ Mars20:07 – 21:25
- 4☉︎ Sun21:25 – 22:43
- 5♀︎ Venus22:43 – 00:01
- 6☿︎ Mercury00:01 – 01:20
- 7☽︎ Moon01:20 – 02:38
- 8♄︎ Saturn02:38 – 03:56
- 9♃︎ Jupiter03:56 – 05:14
- 10♂︎ Mars05:14 – 06:32
- 11☉︎ Sun06:32 – 07:51
- 12♀︎ Venus07:51 – 09:09
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 29 December 2026, the Sun rises at 09:09 and sets at 17:30: the day lasts 8h 22m, that is twelve day hours of 42 min. The night, until the next sunrise at 09:09, lasts 15h 38m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mars, 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: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.