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 Friday, 23 January 2026: day of Venus
- Sunrise
- 08:57
- Sunset
- 18:02
- Next sunrise
- 08:56
A day hour lasts 45 min; a night hour, 1h 14m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:57 – 09:42
- 2☿︎ Mercury09:42 – 10:28
- 3☽︎ Moon10:28 – 11:13
- 4♄︎ Saturn11:13 – 11:59
- 5♃︎ Jupiter11:59 – 12:44
- 6♂︎ Mars12:44 – 13:30
- 7☉︎ Sun13:30 – 14:15
- 8♀︎ Venus14:15 – 15:00
- 9☿︎ Mercury15:00 – 15:46
- 10☽︎ Moon15:46 – 16:31
- 11♄︎ Saturn16:31 – 17:17
- 12♃︎ Jupiter17:17 – 18:02
Night
- 1♂︎ Mars18:02 – 19:17
- 2☉︎ Sun19:17 – 20:31
- 3♀︎ Venus20:31 – 21:46
- 4☿︎ Mercury21:46 – 23:00
- 5☽︎ Moon23:00 – 00:15
- 6♄︎ Saturn00:15 – 01:29
- 7♃︎ Jupiter01:29 – 02:43
- 8♂︎ Mars02:43 – 03:58
- 9☉︎ Sun03:58 – 05:12
- 10♀︎ Venus05:12 – 06:27
- 11☿︎ Mercury06:27 – 07:41
- 12☽︎ Moon07:41 – 08:56
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Friday, 23 January 2026, the Sun rises at 08:57 and sets at 18:02: the day lasts 9h 05m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:56, lasts 14h 54m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Venus, from 08:57 to 09:42: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.