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 Saturday, 17 May 2025: day of Saturn
- Sunrise
- 06:35
- Sunset
- 21:54
- Next sunrise
- 06:34
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn06:35 – 07:51
- 2♃︎ Jupiter07:51 – 09:08
- 3♂︎ Mars09:08 – 10:25
- 4☉︎ Sun10:25 – 11:41
- 5♀︎ Venus11:41 – 12:58
- 6☿︎ Mercury12:58 – 14:14
- 7☽︎ Moon14:14 – 15:31
- 8♄︎ Saturn15:31 – 16:47
- 9♃︎ Jupiter16:47 – 18:04
- 10♂︎ Mars18:04 – 19:21
- 11☉︎ Sun19:21 – 20:37
- 12♀︎ Venus20:37 – 21:54
Night
- 1☿︎ Mercury21:54 – 22:37
- 2☽︎ Moon22:37 – 23:20
- 3♄︎ Saturn23:20 – 00:04
- 4♃︎ Jupiter00:04 – 00:47
- 5♂︎ Mars00:47 – 01:30
- 6☉︎ Sun01:30 – 02:14
- 7♀︎ Venus02:14 – 02:57
- 8☿︎ Mercury02:57 – 03:40
- 9☽︎ Moon03:40 – 04:24
- 10♄︎ Saturn04:24 – 05:07
- 11♃︎ Jupiter05:07 – 05:50
- 12♂︎ Mars05:50 – 06:34
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Saturday, 17 May 2025, the Sun rises at 06:35 and sets at 21:54: the day lasts 15h 19m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:34, lasts 8h 40m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Saturn, from 06:35 to 07:51: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.