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, 30 December 2026: day of Mercury
- Sunrise
- 09:09
- Sunset
- 17:31
- Next sunrise
- 09:09
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury09:09 – 09:51
- 2☽︎ Moon09:51 – 10:33
- 3♄︎ Saturn10:33 – 11:14
- 4♃︎ Jupiter11:14 – 11:56
- 5♂︎ Mars11:56 – 12:38
- 6☉︎ Sun12:38 – 13:20
- 7♀︎ Venus13:20 – 14:02
- 8☿︎ Mercury14:02 – 14:44
- 9☽︎ Moon14:44 – 15:26
- 10♄︎ Saturn15:26 – 16:08
- 11♃︎ Jupiter16:08 – 16:49
- 12♂︎ Mars16:49 – 17:31
Night
- 1☉︎ Sun17:31 – 18:49
- 2♀︎ Venus18:49 – 20:08
- 3☿︎ Mercury20:08 – 21:26
- 4☽︎ Moon21:26 – 22:44
- 5♄︎ Saturn22:44 – 00:02
- 6♃︎ Jupiter00:02 – 01:20
- 7♂︎ Mars01:20 – 02:38
- 8☉︎ Sun02:38 – 03:56
- 9♀︎ Venus03:56 – 05:14
- 10☿︎ Mercury05:14 – 06:33
- 11☽︎ Moon06:33 – 07:51
- 12♄︎ Saturn07:51 – 09:09
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Wednesday, 30 December 2026, the Sun rises at 09:09 and sets at 17:31: the day lasts 8h 22m, that is twelve day hours of 42 min. The night, until the next sunrise at 09:09, lasts 15h 38m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mercury, from 09:09 to 09:51: 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.