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, 23 October 2025: day of Jupiter
- Sunrise
- 08:50
- Sunset
- 19:13
- Next sunrise
- 08:51
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter08:50 – 09:42
- 2♂︎ Mars09:42 – 10:33
- 3☉︎ Sun10:33 – 11:25
- 4♀︎ Venus11:25 – 12:17
- 5☿︎ Mercury12:17 – 13:09
- 6☽︎ Moon13:09 – 14:01
- 7♄︎ Saturn14:01 – 14:53
- 8♃︎ Jupiter14:53 – 15:45
- 9♂︎ Mars15:45 – 16:37
- 10☉︎ Sun16:37 – 17:29
- 11♀︎ Venus17:29 – 18:21
- 12☿︎ Mercury18:21 – 19:13
Night
- 1☽︎ Moon19:13 – 20:21
- 2♄︎ Saturn20:21 – 21:30
- 3♃︎ Jupiter21:30 – 22:38
- 4♂︎ Mars22:38 – 23:46
- 5☉︎ Sun23:46 – 00:54
- 6♀︎ Venus00:54 – 02:02
- 7☿︎ Mercury02:02 – 03:10
- 8☽︎ Moon03:10 – 04:18
- 9♄︎ Saturn04:18 – 05:27
- 10♃︎ Jupiter05:27 – 06:35
- 11♂︎ Mars06:35 – 07:43
- 12☉︎ Sun07:43 – 08:51
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Thursday, 23 October 2025, the Sun rises at 08:50 and sets at 19:13: the day lasts 10h 24m, that is twelve day hours of 52 min. The night, until the next sunrise at 08:51, lasts 13h 38m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Jupiter, from 08:50 to 09:42: 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.