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, 31 July 2025: day of Jupiter
- Sunrise
- 06:51
- Sunset
- 21:56
- Next sunrise
- 06:53
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter06:51 – 08:07
- 2♂︎ Mars08:07 – 09:22
- 3☉︎ Sun09:22 – 10:37
- 4♀︎ Venus10:37 – 11:53
- 5☿︎ Mercury11:53 – 13:08
- 6☽︎ Moon13:08 – 14:23
- 7♄︎ Saturn14:23 – 15:39
- 8♃︎ Jupiter15:39 – 16:54
- 9♂︎ Mars16:54 – 18:10
- 10☉︎ Sun18:10 – 19:25
- 11♀︎ Venus19:25 – 20:40
- 12☿︎ Mercury20:40 – 21:56
Night
- 1☽︎ Moon21:56 – 22:40
- 2♄︎ Saturn22:40 – 23:25
- 3♃︎ Jupiter23:25 – 00:10
- 4♂︎ Mars00:10 – 00:55
- 5☉︎ Sun00:55 – 01:39
- 6♀︎ Venus01:39 – 02:24
- 7☿︎ Mercury02:24 – 03:09
- 8☽︎ Moon03:09 – 03:54
- 9♄︎ Saturn03:54 – 04:38
- 10♃︎ Jupiter04:38 – 05:23
- 11♂︎ Mars05:23 – 06:08
- 12☉︎ Sun06:08 – 06:53
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Thursday, 31 July 2025, the Sun rises at 06:51 and sets at 21:56: the day lasts 15h 04m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 06:53, lasts 8h 57m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Jupiter, from 06:51 to 08:07: 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.