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, 13 January 2026: day of Mars
- Sunrise
- 09:05
- Sunset
- 17:48
- Next sunrise
- 09:05
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).
Day
- 1♂︎ Mars09:05 – 09:49
- 2☉︎ Sun09:49 – 10:32
- 3♀︎ Venus10:32 – 11:16
- 4☿︎ Mercury11:16 – 11:59
- 5☽︎ Moon11:59 – 12:43
- 6♄︎ Saturn12:43 – 13:26
- 7♃︎ Jupiter13:26 – 14:10
- 8♂︎ Mars14:10 – 14:53
- 9☉︎ Sun14:53 – 15:37
- 10♀︎ Venus15:37 – 16:20
- 11☿︎ Mercury16:20 – 17:04
- 12☽︎ Moon17:04 – 17:48
Night
- 1♄︎ Saturn17:48 – 19:04
- 2♃︎ Jupiter19:04 – 20:20
- 3♂︎ Mars20:20 – 21:37
- 4☉︎ Sun21:37 – 22:53
- 5♀︎ Venus22:53 – 00:10
- 6☿︎ Mercury00:10 – 01:26
- 7☽︎ Moon01:26 – 02:42
- 8♄︎ Saturn02:42 – 03:59
- 9♃︎ Jupiter03:59 – 05:15
- 10♂︎ Mars05:15 – 06:32
- 11☉︎ Sun06:32 – 07:48
- 12♀︎ Venus07:48 – 09:05
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 13 January 2026, the Sun rises at 09:05 and sets at 17:48: the day lasts 8h 42m, that is twelve day hours of 44 min. The night, until the next sunrise at 09:05, lasts 15h 17m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Mars, from 09:05 to 09:49: 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.