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 Thursday, 22 January 2026: day of Jupiter
- Sunrise
- 08:58
- Sunset
- 18:01
- Next sunrise
- 08:57
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter08:58 – 09:43
- 2♂︎ Mars09:43 – 10:28
- 3☉︎ Sun10:28 – 11:14
- 4♀︎ Venus11:14 – 11:59
- 5☿︎ Mercury11:59 – 12:44
- 6☽︎ Moon12:44 – 13:29
- 7♄︎ Saturn13:29 – 14:14
- 8♃︎ Jupiter14:14 – 15:00
- 9♂︎ Mars15:00 – 15:45
- 10☉︎ Sun15:45 – 16:30
- 11♀︎ Venus16:30 – 17:15
- 12☿︎ Mercury17:15 – 18:01
Night
- 1☽︎ Moon18:01 – 19:15
- 2♄︎ Saturn19:15 – 20:30
- 3♃︎ Jupiter20:30 – 21:45
- 4♂︎ Mars21:45 – 22:59
- 5☉︎ Sun22:59 – 00:14
- 6♀︎ Venus00:14 – 01:29
- 7☿︎ Mercury01:29 – 02:43
- 8☽︎ Moon02:43 – 03:58
- 9♄︎ Saturn03:58 – 05:13
- 10♃︎ Jupiter05:13 – 06:28
- 11♂︎ Mars06:28 – 07:42
- 12☉︎ Sun07:42 – 08:57
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Thursday, 22 January 2026, the Sun rises at 08:58 and sets at 18:01: the day lasts 9h 03m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:57, lasts 14h 56m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Jupiter, from 08:58 to 09:43: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.