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 Wednesday, 22 October 2025: day of Mercury
- Sunrise
- 08:48
- Sunset
- 19:15
- Next sunrise
- 08:50
A day hour lasts 52 min; a night hour, 1h 08m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:48 – 09:40
- 2☽︎ Moon09:40 – 10:33
- 3♄︎ Saturn10:33 – 11:25
- 4♃︎ Jupiter11:25 – 12:17
- 5♂︎ Mars12:17 – 13:09
- 6☉︎ Sun13:09 – 14:02
- 7♀︎ Venus14:02 – 14:54
- 8☿︎ Mercury14:54 – 15:46
- 9☽︎ Moon15:46 – 16:38
- 10♄︎ Saturn16:38 – 17:31
- 11♃︎ Jupiter17:31 – 18:23
- 12♂︎ Mars18:23 – 19:15
Night
- 1☉︎ Sun19:15 – 20:23
- 2♀︎ Venus20:23 – 21:31
- 3☿︎ Mercury21:31 – 22:39
- 4☽︎ Moon22:39 – 23:47
- 5♄︎ Saturn23:47 – 00:54
- 6♃︎ Jupiter00:54 – 02:02
- 7♂︎ Mars02:02 – 03:10
- 8☉︎ Sun03:10 – 04:18
- 9♀︎ Venus04:18 – 05:26
- 10☿︎ Mercury05:26 – 06:34
- 11☽︎ Moon06:34 – 07:42
- 12♄︎ Saturn07:42 – 08:50
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Wednesday, 22 October 2025, the Sun rises at 08:48 and sets at 19:15: the day lasts 10h 27m, that is twelve day hours of 52 min. The night, until the next sunrise at 08:50, lasts 13h 35m: twelve night hours of 1h 08m.
Which planet rules the first hour that day?
Mercury, from 08:48 to 09:40: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.