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, 19 August 2025: day of Mars
- Sunrise
- 07:17
- Sunset
- 21:24
- Next sunrise
- 07:18
A day hour lasts 1h 11m; a night hour, 50 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:17 – 08:28
- 2☉︎ Sun08:28 – 09:38
- 3♀︎ Venus09:38 – 10:49
- 4☿︎ Mercury10:49 – 11:59
- 5☽︎ Moon11:59 – 13:10
- 6♄︎ Saturn13:10 – 14:21
- 7♃︎ Jupiter14:21 – 15:31
- 8♂︎ Mars15:31 – 16:42
- 9☉︎ Sun16:42 – 17:52
- 10♀︎ Venus17:52 – 19:03
- 11☿︎ Mercury19:03 – 20:13
- 12☽︎ Moon20:13 – 21:24
Night
- 1♄︎ Saturn21:24 – 22:14
- 2♃︎ Jupiter22:14 – 23:03
- 3♂︎ Mars23:03 – 23:53
- 4☉︎ Sun23:53 – 00:42
- 5♀︎ Venus00:42 – 01:32
- 6☿︎ Mercury01:32 – 02:21
- 7☽︎ Moon02:21 – 03:11
- 8♄︎ Saturn03:11 – 04:00
- 9♃︎ Jupiter04:00 – 04:50
- 10♂︎ Mars04:50 – 05:39
- 11☉︎ Sun05:39 – 06:29
- 12♀︎ Venus06:29 – 07:18
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 19 August 2025, the Sun rises at 07:17 and sets at 21:24: the day lasts 14h 07m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 07:18, lasts 9h 54m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mars, from 07:17 to 08:28: 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.