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, 21 May 2026: day of Jupiter
- Sunrise
- 06:30
- Sunset
- 21:59
- Next sunrise
- 06:29
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter06:30 – 07:48
- 2♂︎ Mars07:48 – 09:05
- 3☉︎ Sun09:05 – 10:22
- 4♀︎ Venus10:22 – 11:40
- 5☿︎ Mercury11:40 – 12:57
- 6☽︎ Moon12:57 – 14:14
- 7♄︎ Saturn14:14 – 15:32
- 8♃︎ Jupiter15:32 – 16:49
- 9♂︎ Mars16:49 – 18:06
- 10☉︎ Sun18:06 – 19:24
- 11♀︎ Venus19:24 – 20:41
- 12☿︎ Mercury20:41 – 21:59
Night
- 1☽︎ Moon21:59 – 22:41
- 2♄︎ Saturn22:41 – 23:24
- 3♃︎ Jupiter23:24 – 00:06
- 4♂︎ Mars00:06 – 00:49
- 5☉︎ Sun00:49 – 01:31
- 6♀︎ Venus01:31 – 02:14
- 7☿︎ Mercury02:14 – 02:56
- 8☽︎ Moon02:56 – 03:39
- 9♄︎ Saturn03:39 – 04:22
- 10♃︎ Jupiter04:22 – 05:04
- 11♂︎ Mars05:04 – 05:47
- 12☉︎ Sun05:47 – 06:29
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Thursday, 21 May 2026, the Sun rises at 06:30 and sets at 21:59: the day lasts 15h 28m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:29, lasts 8h 31m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Jupiter, from 06:30 to 07:48: 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.