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, 1 October 2025: day of Mercury
- Sunrise
- 08:17
- Sunset
- 19:56
- Next sunrise
- 08:18
A day hour lasts 58 min; a night hour, 1h 02m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:17 – 09:15
- 2☽︎ Moon09:15 – 10:14
- 3♄︎ Saturn10:14 – 11:12
- 4♃︎ Jupiter11:12 – 12:10
- 5♂︎ Mars12:10 – 13:08
- 6☉︎ Sun13:08 – 14:07
- 7♀︎ Venus14:07 – 15:05
- 8☿︎ Mercury15:05 – 16:03
- 9☽︎ Moon16:03 – 17:01
- 10♄︎ Saturn17:01 – 18:00
- 11♃︎ Jupiter18:00 – 18:58
- 12♂︎ Mars18:58 – 19:56
Night
- 1☉︎ Sun19:56 – 20:58
- 2♀︎ Venus20:58 – 22:00
- 3☿︎ Mercury22:00 – 23:02
- 4☽︎ Moon23:02 – 00:04
- 5♄︎ Saturn00:04 – 01:05
- 6♃︎ Jupiter01:05 – 02:07
- 7♂︎ Mars02:07 – 03:09
- 8☉︎ Sun03:09 – 04:11
- 9♀︎ Venus04:11 – 05:13
- 10☿︎ Mercury05:13 – 06:15
- 11☽︎ Moon06:15 – 07:17
- 12♄︎ Saturn07:17 – 08:18
Other cities · France
Questions
How are the planetary hours calculated in Brest?
On Wednesday, 1 October 2025, the Sun rises at 08:17 and sets at 19:56: the day lasts 11h 39m, that is twelve day hours of 58 min. The night, until the next sunrise at 08:18, lasts 12h 22m: twelve night hours of 1h 02m.
Which planet rules the first hour that day?
Mercury, from 08:17 to 09:15: 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.