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, 12 March 2026: day of Jupiter
- Sunrise
- 07:37
- Sunset
- 19:18
- Next sunrise
- 07:35
A day hour lasts 58 min; a night hour, 1h 01m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter07:37 – 08:35
- 2♂︎ Mars08:35 – 09:34
- 3☉︎ Sun09:34 – 10:32
- 4♀︎ Venus10:32 – 11:31
- 5☿︎ Mercury11:31 – 12:29
- 6☽︎ Moon12:29 – 13:28
- 7♄︎ Saturn13:28 – 14:26
- 8♃︎ Jupiter14:26 – 15:24
- 9♂︎ Mars15:24 – 16:23
- 10☉︎ Sun16:23 – 17:21
- 11♀︎ Venus17:21 – 18:20
- 12☿︎ Mercury18:20 – 19:18
Night
- 1☽︎ Moon19:18 – 20:20
- 2♄︎ Saturn20:20 – 21:21
- 3♃︎ Jupiter21:21 – 22:22
- 4♂︎ Mars22:22 – 23:24
- 5☉︎ Sun23:24 – 00:25
- 6♀︎ Venus00:25 – 01:27
- 7☿︎ Mercury01:27 – 02:28
- 8☽︎ Moon02:28 – 03:29
- 9♄︎ Saturn03:29 – 04:31
- 10♃︎ Jupiter04:31 – 05:32
- 11♂︎ Mars05:32 – 06:34
- 12☉︎ Sun06:34 – 07:35
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Thursday, 12 March 2026, the Sun rises at 07:37 and sets at 19:18: the day lasts 11h 41m, that is twelve day hours of 58 min. The night, until the next sunrise at 07:35, lasts 12h 17m: twelve night hours of 1h 01m.
Which planet rules the first hour that day?
Jupiter, from 07:37 to 08:35: 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.