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 Wednesday, 30 September 2026: day of Mercury
- Sunrise
- 08:04
- Sunset
- 19:48
- Next sunrise
- 08:05
A day hour lasts 59 min; a night hour, 1h 01m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury08:04 – 09:02
- 2☽︎ Moon09:02 – 10:01
- 3♄︎ Saturn10:01 – 11:00
- 4♃︎ Jupiter11:00 – 11:58
- 5♂︎ Mars11:58 – 12:57
- 6☉︎ Sun12:57 – 13:56
- 7♀︎ Venus13:56 – 14:54
- 8☿︎ Mercury14:54 – 15:53
- 9☽︎ Moon15:53 – 16:52
- 10♄︎ Saturn16:52 – 17:50
- 11♃︎ Jupiter17:50 – 18:49
- 12♂︎ Mars18:49 – 19:48
Night
- 1☉︎ Sun19:48 – 20:49
- 2♀︎ Venus20:49 – 21:51
- 3☿︎ Mercury21:51 – 22:52
- 4☽︎ Moon22:52 – 23:54
- 5♄︎ Saturn23:54 – 00:55
- 6♃︎ Jupiter00:55 – 01:56
- 7♂︎ Mars01:56 – 02:58
- 8☉︎ Sun02:58 – 03:59
- 9♀︎ Venus03:59 – 05:01
- 10☿︎ Mercury05:01 – 06:02
- 11☽︎ Moon06:02 – 07:04
- 12♄︎ Saturn07:04 – 08:05
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Wednesday, 30 September 2026, the Sun rises at 08:04 and sets at 19:48: the day lasts 11h 44m, that is twelve day hours of 59 min. The night, until the next sunrise at 08:05, lasts 12h 18m: twelve night hours of 1h 01m.
Which planet rules the first hour that day?
Mercury, from 08:04 to 09:02: 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.