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, 9 September 2025: day of Mars
- Sunrise
- 07:46
- Sunset
- 20:42
- Next sunrise
- 07:48
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:46 – 08:51
- 2☉︎ Sun08:51 – 09:56
- 3♀︎ Venus09:56 – 11:00
- 4☿︎ Mercury11:00 – 12:05
- 5☽︎ Moon12:05 – 13:10
- 6♄︎ Saturn13:10 – 14:14
- 7♃︎ Jupiter14:14 – 15:19
- 8♂︎ Mars15:19 – 16:24
- 9☉︎ Sun16:24 – 17:28
- 10♀︎ Venus17:28 – 18:33
- 11☿︎ Mercury18:33 – 19:38
- 12☽︎ Moon19:38 – 20:42
Night
- 1♄︎ Saturn20:42 – 21:38
- 2♃︎ Jupiter21:38 – 22:33
- 3♂︎ Mars22:33 – 23:29
- 4☉︎ Sun23:29 – 00:24
- 5♀︎ Venus00:24 – 01:19
- 6☿︎ Mercury01:19 – 02:15
- 7☽︎ Moon02:15 – 03:10
- 8♄︎ Saturn03:10 – 04:06
- 9♃︎ Jupiter04:06 – 05:01
- 10♂︎ Mars05:01 – 05:57
- 11☉︎ Sun05:57 – 06:52
- 12♀︎ Venus06:52 – 07:48
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 9 September 2025, the Sun rises at 07:46 and sets at 20:42: the day lasts 12h 56m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 07:48, lasts 11h 05m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mars, from 07:46 to 08:51: 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.