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 Thursday, 15 October 2026: day of Jupiter
- Sunrise
- 08:25
- Sunset
- 19:18
- Next sunrise
- 08:27
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter08:25 – 09:20
- 2♂︎ Mars09:20 – 10:14
- 3☉︎ Sun10:14 – 11:08
- 4♀︎ Venus11:08 – 12:03
- 5☿︎ Mercury12:03 – 12:57
- 6☽︎ Moon12:57 – 13:52
- 7♄︎ Saturn13:52 – 14:46
- 8♃︎ Jupiter14:46 – 15:40
- 9♂︎ Mars15:40 – 16:35
- 10☉︎ Sun16:35 – 17:29
- 11♀︎ Venus17:29 – 18:23
- 12☿︎ Mercury18:23 – 19:18
Night
- 1☽︎ Moon19:18 – 20:23
- 2♄︎ Saturn20:23 – 21:29
- 3♃︎ Jupiter21:29 – 22:35
- 4♂︎ Mars22:35 – 23:41
- 5☉︎ Sun23:41 – 00:47
- 6♀︎ Venus00:47 – 01:52
- 7☿︎ Mercury01:52 – 02:58
- 8☽︎ Moon02:58 – 04:04
- 9♄︎ Saturn04:04 – 05:10
- 10♃︎ Jupiter05:10 – 06:15
- 11♂︎ Mars06:15 – 07:21
- 12☉︎ Sun07:21 – 08:27
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Thursday, 15 October 2026, the Sun rises at 08:25 and sets at 19:18: the day lasts 10h 52m, that is twelve day hours of 54 min. The night, until the next sunrise at 08:27, lasts 13h 09m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Jupiter, from 08:25 to 09:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.