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, 18 August 2026: day of Mars
- Sunrise
- 07:15
- Sunset
- 21:26
- Next sunrise
- 07:17
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:15 – 08:26
- 2☉︎ Sun08:26 – 09:37
- 3♀︎ Venus09:37 – 10:48
- 4☿︎ Mercury10:48 – 11:59
- 5☽︎ Moon11:59 – 13:10
- 6♄︎ Saturn13:10 – 14:21
- 7♃︎ Jupiter14:21 – 15:32
- 8♂︎ Mars15:32 – 16:43
- 9☉︎ Sun16:43 – 17:54
- 10♀︎ Venus17:54 – 19:05
- 11☿︎ Mercury19:05 – 20:15
- 12☽︎ Moon20:15 – 21:26
Night
- 1♄︎ Saturn21:26 – 22:16
- 2♃︎ Jupiter22:16 – 23:05
- 3♂︎ Mars23:05 – 23:54
- 4☉︎ Sun23:54 – 00:43
- 5♀︎ Venus00:43 – 01:32
- 6☿︎ Mercury01:32 – 02:22
- 7☽︎ Moon02:22 – 03:11
- 8♄︎ Saturn03:11 – 04:00
- 9♃︎ Jupiter04:00 – 04:49
- 10♂︎ Mars04:49 – 05:38
- 11☉︎ Sun05:38 – 06:28
- 12♀︎ Venus06:28 – 07:17
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Tuesday, 18 August 2026, the Sun rises at 07:15 and sets at 21:26: the day lasts 14h 11m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 07:17, lasts 9h 50m: twelve night hours of 49 min.
Which planet rules the first hour that day?
Mars, from 07:15 to 08:26: 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.