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 Tuesday, 20 October 2026: day of Mars
- Sunrise
- 08:45
- Sunset
- 19:19
- Next sunrise
- 08:46
A day hour lasts 53 min; a night hour, 1h 07m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:45 – 09:37
- 2☉︎ Sun09:37 – 10:30
- 3♀︎ Venus10:30 – 11:23
- 4☿︎ Mercury11:23 – 12:16
- 5☽︎ Moon12:16 – 13:09
- 6♄︎ Saturn13:09 – 14:02
- 7♃︎ Jupiter14:02 – 14:55
- 8♂︎ Mars14:55 – 15:48
- 9☉︎ Sun15:48 – 16:41
- 10♀︎ Venus16:41 – 17:33
- 11☿︎ Mercury17:33 – 18:26
- 12☽︎ Moon18:26 – 19:19
Night
- 1♄︎ Saturn19:19 – 20:26
- 2♃︎ Jupiter20:26 – 21:34
- 3♂︎ Mars21:34 – 22:41
- 4☉︎ Sun22:41 – 23:48
- 5♀︎ Venus23:48 – 00:55
- 6☿︎ Mercury00:55 – 02:03
- 7☽︎ Moon02:03 – 03:10
- 8♄︎ Saturn03:10 – 04:17
- 9♃︎ Jupiter04:17 – 05:24
- 10♂︎ Mars05:24 – 06:32
- 11☉︎ Sun06:32 – 07:39
- 12♀︎ Venus07:39 – 08:46
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 20 October 2026, the Sun rises at 08:45 and sets at 19:19: the day lasts 10h 35m, that is twelve day hours of 53 min. The night, until the next sunrise at 08:46, lasts 13h 27m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Mars, from 08:45 to 09:37: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.