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 Tuesday, 8 September 2026: day of Mars
- Sunrise
- 07:33
- Sunset
- 20:33
- Next sunrise
- 07:35
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:33 – 08:38
- 2☉︎ Sun08:38 – 09:43
- 3♀︎ Venus09:43 – 10:48
- 4☿︎ Mercury10:48 – 11:53
- 5☽︎ Moon11:53 – 12:58
- 6♄︎ Saturn12:58 – 14:03
- 7♃︎ Jupiter14:03 – 15:08
- 8♂︎ Mars15:08 – 16:13
- 9☉︎ Sun16:13 – 17:18
- 10♀︎ Venus17:18 – 18:23
- 11☿︎ Mercury18:23 – 19:28
- 12☽︎ Moon19:28 – 20:33
Night
- 1♄︎ Saturn20:33 – 21:28
- 2♃︎ Jupiter21:28 – 22:24
- 3♂︎ Mars22:24 – 23:19
- 4☉︎ Sun23:19 – 00:14
- 5♀︎ Venus00:14 – 01:09
- 6☿︎ Mercury01:09 – 02:04
- 7☽︎ Moon02:04 – 02:59
- 8♄︎ Saturn02:59 – 03:54
- 9♃︎ Jupiter03:54 – 04:49
- 10♂︎ Mars04:49 – 05:45
- 11☉︎ Sun05:45 – 06:40
- 12♀︎ Venus06:40 – 07:35
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Tuesday, 8 September 2026, the Sun rises at 07:33 and sets at 20:33: the day lasts 13h 00m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 07:35, lasts 11h 01m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Mars, from 07:33 to 08:38: 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.