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 Tuesday, 12 August 2025: day of Mars
- Sunrise
- 07:07
- Sunset
- 21:37
- Next sunrise
- 07:09
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:07 – 08:20
- 2☉︎ Sun08:20 – 09:32
- 3♀︎ Venus09:32 – 10:45
- 4☿︎ Mercury10:45 – 11:57
- 5☽︎ Moon11:57 – 13:10
- 6♄︎ Saturn13:10 – 14:22
- 7♃︎ Jupiter14:22 – 15:34
- 8♂︎ Mars15:34 – 16:47
- 9☉︎ Sun16:47 – 17:59
- 10♀︎ Venus17:59 – 19:12
- 11☿︎ Mercury19:12 – 20:24
- 12☽︎ Moon20:24 – 21:37
Night
- 1♄︎ Saturn21:37 – 22:24
- 2♃︎ Jupiter22:24 – 23:12
- 3♂︎ Mars23:12 – 00:00
- 4☉︎ Sun00:00 – 00:47
- 5♀︎ Venus00:47 – 01:35
- 6☿︎ Mercury01:35 – 02:23
- 7☽︎ Moon02:23 – 03:10
- 8♄︎ Saturn03:10 – 03:58
- 9♃︎ Jupiter03:58 – 04:46
- 10♂︎ Mars04:46 – 05:33
- 11☉︎ Sun05:33 – 06:21
- 12♀︎ Venus06:21 – 07:09
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 12 August 2025, the Sun rises at 07:07 and sets at 21:37: the day lasts 14h 29m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 07:09, lasts 9h 32m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Mars, from 07:07 to 08:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.