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, 18 January 2026: day of the Sun
- Sunrise
- 09:02
- Sunset
- 17:55
- Next sunrise
- 09:01
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).
Day
- 1☉︎ Sun09:02 – 09:46
- 2♀︎ Venus09:46 – 10:30
- 3☿︎ Mercury10:30 – 11:15
- 4☽︎ Moon11:15 – 11:59
- 5♄︎ Saturn11:59 – 12:44
- 6♃︎ Jupiter12:44 – 13:28
- 7♂︎ Mars13:28 – 14:12
- 8☉︎ Sun14:12 – 14:57
- 9♀︎ Venus14:57 – 15:41
- 10☿︎ Mercury15:41 – 16:26
- 11☽︎ Moon16:26 – 17:10
- 12♄︎ Saturn17:10 – 17:55
Night
- 1♃︎ Jupiter17:55 – 19:10
- 2♂︎ Mars19:10 – 20:26
- 3☉︎ Sun20:26 – 21:41
- 4♀︎ Venus21:41 – 22:57
- 5☿︎ Mercury22:57 – 00:12
- 6☽︎ Moon00:12 – 01:28
- 7♄︎ Saturn01:28 – 02:43
- 8♃︎ Jupiter02:43 – 03:59
- 9♂︎ Mars03:59 – 05:14
- 10☉︎ Sun05:14 – 06:30
- 11♀︎ Venus06:30 – 07:45
- 12☿︎ Mercury07:45 – 09:01
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Sunday, 18 January 2026, the Sun rises at 09:02 and sets at 17:55: the day lasts 8h 53m, that is twelve day hours of 44 min. The night, until the next sunrise at 09:01, lasts 15h 06m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
The Sun, from 09:02 to 09:46: 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.