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 Sunday, 28 September 2025: day of the Sun
- Sunrise
- 08:13
- Sunset
- 20:02
- Next sunrise
- 08:14
A day hour lasts 59 min; a night hour, 1h 01m. Local time (Europe/Paris).
Day
- 1☉︎ Sun08:13 – 09:12
- 2♀︎ Venus09:12 – 10:11
- 3☿︎ Mercury10:11 – 11:10
- 4☽︎ Moon11:10 – 12:09
- 5♄︎ Saturn12:09 – 13:08
- 6♃︎ Jupiter13:08 – 14:08
- 7♂︎ Mars14:08 – 15:07
- 8☉︎ Sun15:07 – 16:06
- 9♀︎ Venus16:06 – 17:05
- 10☿︎ Mercury17:05 – 18:04
- 11☽︎ Moon18:04 – 19:03
- 12♄︎ Saturn19:03 – 20:02
Night
- 1♃︎ Jupiter20:02 – 21:03
- 2♂︎ Mars21:03 – 22:04
- 3☉︎ Sun22:04 – 23:05
- 4♀︎ Venus23:05 – 00:06
- 5☿︎ Mercury00:06 – 01:07
- 6☽︎ Moon01:07 – 02:08
- 7♄︎ Saturn02:08 – 03:09
- 8♃︎ Jupiter03:09 – 04:10
- 9♂︎ Mars04:10 – 05:11
- 10☉︎ Sun05:11 – 06:12
- 11♀︎ Venus06:12 – 07:13
- 12☿︎ Mercury07:13 – 08:14
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Sunday, 28 September 2025, the Sun rises at 08:13 and sets at 20:02: the day lasts 11h 50m, that is twelve day hours of 59 min. The night, until the next sunrise at 08:14, lasts 12h 12m: twelve night hours of 1h 01m.
Which planet rules the first hour that day?
The Sun, from 08:13 to 09:12: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.