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, 8 December 2026: day of Mars
- Sunrise
- 08:56
- Sunset
- 17:23
- Next sunrise
- 08:57
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:56 – 09:38
- 2☉︎ Sun09:38 – 10:20
- 3♀︎ Venus10:20 – 11:02
- 4☿︎ Mercury11:02 – 11:45
- 5☽︎ Moon11:45 – 12:27
- 6♄︎ Saturn12:27 – 13:09
- 7♃︎ Jupiter13:09 – 13:51
- 8♂︎ Mars13:51 – 14:34
- 9☉︎ Sun14:34 – 15:16
- 10♀︎ Venus15:16 – 15:58
- 11☿︎ Mercury15:58 – 16:41
- 12☽︎ Moon16:41 – 17:23
Night
- 1♄︎ Saturn17:23 – 18:41
- 2♃︎ Jupiter18:41 – 19:58
- 3♂︎ Mars19:58 – 21:16
- 4☉︎ Sun21:16 – 22:34
- 5♀︎ Venus22:34 – 23:52
- 6☿︎ Mercury23:52 – 01:10
- 7☽︎ Moon01:10 – 02:28
- 8♄︎ Saturn02:28 – 03:45
- 9♃︎ Jupiter03:45 – 05:03
- 10♂︎ Mars05:03 – 06:21
- 11☉︎ Sun06:21 – 07:39
- 12♀︎ Venus07:39 – 08:57
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 8 December 2026, the Sun rises at 08:56 and sets at 17:23: the day lasts 8h 27m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:57, lasts 15h 34m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mars, from 08:56 to 09:38: 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.