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, 20 September 2026: day of the Sun
- Sunrise
- 08:01
- Sunset
- 20:20
- Next sunrise
- 08:03
A day hour lasts 1h 02m; a night hour, 59 min. Local time (Europe/Paris).
Day
- 1☉︎ Sun08:01 – 09:03
- 2♀︎ Venus09:03 – 10:04
- 3☿︎ Mercury10:04 – 11:06
- 4☽︎ Moon11:06 – 12:07
- 5♄︎ Saturn12:07 – 13:09
- 6♃︎ Jupiter13:09 – 14:10
- 7♂︎ Mars14:10 – 15:12
- 8☉︎ Sun15:12 – 16:14
- 9♀︎ Venus16:14 – 17:15
- 10☿︎ Mercury17:15 – 18:17
- 11☽︎ Moon18:17 – 19:18
- 12♄︎ Saturn19:18 – 20:20
Night
- 1♃︎ Jupiter20:20 – 21:18
- 2♂︎ Mars21:18 – 22:17
- 3☉︎ Sun22:17 – 23:15
- 4♀︎ Venus23:15 – 00:14
- 5☿︎ Mercury00:14 – 01:13
- 6☽︎ Moon01:13 – 02:11
- 7♄︎ Saturn02:11 – 03:10
- 8♃︎ Jupiter03:10 – 04:08
- 9♂︎ Mars04:08 – 05:07
- 10☉︎ Sun05:07 – 06:05
- 11♀︎ Venus06:05 – 07:04
- 12☿︎ Mercury07:04 – 08:03
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Sunday, 20 September 2026, the Sun rises at 08:01 and sets at 20:20: the day lasts 12h 19m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 08:03, lasts 11h 43m: twelve night hours of 59 min.
Which planet rules the first hour that day?
The Sun, from 08:01 to 09:03: 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.