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, 22 December 2026: day of Mars
- Sunrise
- 09:07
- Sunset
- 17:25
- Next sunrise
- 09:07
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♂︎ Mars09:07 – 09:48
- 2☉︎ Sun09:48 – 10:30
- 3♀︎ Venus10:30 – 11:11
- 4☿︎ Mercury11:11 – 11:53
- 5☽︎ Moon11:53 – 12:34
- 6♄︎ Saturn12:34 – 13:16
- 7♃︎ Jupiter13:16 – 13:58
- 8♂︎ Mars13:58 – 14:39
- 9☉︎ Sun14:39 – 15:21
- 10♀︎ Venus15:21 – 16:02
- 11☿︎ Mercury16:02 – 16:44
- 12☽︎ Moon16:44 – 17:25
Night
- 1♄︎ Saturn17:25 – 18:44
- 2♃︎ Jupiter18:44 – 20:02
- 3♂︎ Mars20:02 – 21:21
- 4☉︎ Sun21:21 – 22:39
- 5♀︎ Venus22:39 – 23:58
- 6☿︎ Mercury23:58 – 01:16
- 7☽︎ Moon01:16 – 02:35
- 8♄︎ Saturn02:35 – 03:53
- 9♃︎ Jupiter03:53 – 05:12
- 10♂︎ Mars05:12 – 06:30
- 11☉︎ Sun06:30 – 07:49
- 12♀︎ Venus07:49 – 09:07
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 22 December 2026, the Sun rises at 09:07 and sets at 17:25: the day lasts 8h 19m, that is twelve day hours of 42 min. The night, until the next sunrise at 09:07, lasts 15h 42m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mars, from 09:07 to 09:48: 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.