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 Wednesday, 20 January 2027: day of Mercury
- Sunrise
- 09:00
- Sunset
- 17:57
- Next sunrise
- 08:59
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury09:00 – 09:45
- 2☽︎ Moon09:45 – 10:30
- 3♄︎ Saturn10:30 – 11:14
- 4♃︎ Jupiter11:14 – 11:59
- 5♂︎ Mars11:59 – 12:44
- 6☉︎ Sun12:44 – 13:29
- 7♀︎ Venus13:29 – 14:13
- 8☿︎ Mercury14:13 – 14:58
- 9☽︎ Moon14:58 – 15:43
- 10♄︎ Saturn15:43 – 16:28
- 11♃︎ Jupiter16:28 – 17:12
- 12♂︎ Mars17:12 – 17:57
Night
- 1☉︎ Sun17:57 – 19:12
- 2♀︎ Venus19:12 – 20:28
- 3☿︎ Mercury20:28 – 21:43
- 4☽︎ Moon21:43 – 22:58
- 5♄︎ Saturn22:58 – 00:13
- 6♃︎ Jupiter00:13 – 01:28
- 7♂︎ Mars01:28 – 02:43
- 8☉︎ Sun02:43 – 03:59
- 9♀︎ Venus03:59 – 05:14
- 10☿︎ Mercury05:14 – 06:29
- 11☽︎ Moon06:29 – 07:44
- 12♄︎ Saturn07:44 – 08:59
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Wednesday, 20 January 2027, the Sun rises at 09:00 and sets at 17:57: the day lasts 8h 57m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:59, lasts 15h 02m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Mercury, from 09:00 to 09:45: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.