Planetary hours
in Rennes.
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 Monday, 17 August 2026: day of the Moon
- Sunrise
- 07:03
- Sunset
- 21:16
- Next sunrise
- 07:05
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Paris).
Day
- 1☽︎ Moon07:03 – 08:14
- 2♄︎ Saturn08:14 – 09:25
- 3♃︎ Jupiter09:25 – 10:37
- 4♂︎ Mars10:37 – 11:48
- 5☉︎ Sun11:48 – 12:59
- 6♀︎ Venus12:59 – 14:10
- 7☿︎ Mercury14:10 – 15:21
- 8☽︎ Moon15:21 – 16:32
- 9♄︎ Saturn16:32 – 17:43
- 10♃︎ Jupiter17:43 – 18:54
- 11♂︎ Mars18:54 – 20:05
- 12☉︎ Sun20:05 – 21:16
Night
- 1♀︎ Venus21:16 – 22:05
- 2☿︎ Mercury22:05 – 22:54
- 3☽︎ Moon22:54 – 23:43
- 4♄︎ Saturn23:43 – 00:32
- 5♃︎ Jupiter00:32 – 01:21
- 6♂︎ Mars01:21 – 02:10
- 7☉︎ Sun02:10 – 03:00
- 8♀︎ Venus03:00 – 03:49
- 9☿︎ Mercury03:49 – 04:38
- 10☽︎ Moon04:38 – 05:27
- 11♄︎ Saturn05:27 – 06:16
- 12♃︎ Jupiter06:16 – 07:05
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Monday, 17 August 2026, the Sun rises at 07:03 and sets at 21:16: the day lasts 14h 13m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 07:05, lasts 9h 48m: twelve night hours of 49 min.
Which planet rules the first hour that day?
The Moon, from 07:03 to 08:14: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.