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, 4 January 2028: day of Mars
- Sunrise
- 09:09
- Sunset
- 17:36
- Next sunrise
- 09:09
A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).
Day
- 1♂︎ Mars09:09 – 09:51
- 2☉︎ Sun09:51 – 10:33
- 3♀︎ Venus10:33 – 11:15
- 4☿︎ Mercury11:15 – 11:58
- 5☽︎ Moon11:58 – 12:40
- 6♄︎ Saturn12:40 – 13:22
- 7♃︎ Jupiter13:22 – 14:05
- 8♂︎ Mars14:05 – 14:47
- 9☉︎ Sun14:47 – 15:29
- 10♀︎ Venus15:29 – 16:11
- 11☿︎ Mercury16:11 – 16:54
- 12☽︎ Moon16:54 – 17:36
Night
- 1♄︎ Saturn17:36 – 18:54
- 2♃︎ Jupiter18:54 – 20:11
- 3♂︎ Mars20:11 – 21:29
- 4☉︎ Sun21:29 – 22:47
- 5♀︎ Venus22:47 – 00:04
- 6☿︎ Mercury00:04 – 01:22
- 7☽︎ Moon01:22 – 02:40
- 8♄︎ Saturn02:40 – 03:58
- 9♃︎ Jupiter03:58 – 05:15
- 10♂︎ Mars05:15 – 06:33
- 11☉︎ Sun06:33 – 07:51
- 12♀︎ Venus07:51 – 09:09
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 4 January 2028, the Sun rises at 09:09 and sets at 17:36: the day lasts 8h 27m, that is twelve day hours of 42 min. The night, until the next sunrise at 09:09, lasts 15h 33m: twelve night hours of 1h 18m.
Which planet rules the first hour that day?
Mars, 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 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.