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, 21 July 2026: day of Mars
- Sunrise
- 06:39
- Sunset
- 22:09
- Next sunrise
- 06:40
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars06:39 – 07:56
- 2☉︎ Sun07:56 – 09:14
- 3♀︎ Venus09:14 – 10:31
- 4☿︎ Mercury10:31 – 11:49
- 5☽︎ Moon11:49 – 13:06
- 6♄︎ Saturn13:06 – 14:24
- 7♃︎ Jupiter14:24 – 15:41
- 8♂︎ Mars15:41 – 16:59
- 9☉︎ Sun16:59 – 18:16
- 10♀︎ Venus18:16 – 19:34
- 11☿︎ Mercury19:34 – 20:51
- 12☽︎ Moon20:51 – 22:09
Night
- 1♄︎ Saturn22:09 – 22:51
- 2♃︎ Jupiter22:51 – 23:34
- 3♂︎ Mars23:34 – 00:16
- 4☉︎ Sun00:16 – 00:59
- 5♀︎ Venus00:59 – 01:42
- 6☿︎ Mercury01:42 – 02:24
- 7☽︎ Moon02:24 – 03:07
- 8♄︎ Saturn03:07 – 03:49
- 9♃︎ Jupiter03:49 – 04:32
- 10♂︎ Mars04:32 – 05:15
- 11☉︎ Sun05:15 – 05:57
- 12♀︎ Venus05:57 – 06:40
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 21 July 2026, the Sun rises at 06:39 and sets at 22:09: the day lasts 15h 30m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:40, lasts 8h 31m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Mars, from 06:39 to 07:56: 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.