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, 13 May 2026: day of Mercury
- Sunrise
- 06:30
- Sunset
- 21:36
- Next sunrise
- 06:29
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury06:30 – 07:45
- 2☽︎ Moon07:45 – 09:01
- 3♄︎ Saturn09:01 – 10:16
- 4♃︎ Jupiter10:16 – 11:32
- 5♂︎ Mars11:32 – 12:47
- 6☉︎ Sun12:47 – 14:03
- 7♀︎ Venus14:03 – 15:18
- 8☿︎ Mercury15:18 – 16:34
- 9☽︎ Moon16:34 – 17:50
- 10♄︎ Saturn17:50 – 19:05
- 11♃︎ Jupiter19:05 – 20:21
- 12♂︎ Mars20:21 – 21:36
Night
- 1☉︎ Sun21:36 – 22:20
- 2♀︎ Venus22:20 – 23:05
- 3☿︎ Mercury23:05 – 23:49
- 4☽︎ Moon23:49 – 00:34
- 5♄︎ Saturn00:34 – 01:18
- 6♃︎ Jupiter01:18 – 02:02
- 7♂︎ Mars02:02 – 02:47
- 8☉︎ Sun02:47 – 03:31
- 9♀︎ Venus03:31 – 04:15
- 10☿︎ Mercury04:15 – 05:00
- 11☽︎ Moon05:00 – 05:44
- 12♄︎ Saturn05:44 – 06:29
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Wednesday, 13 May 2026, the Sun rises at 06:30 and sets at 21:36: the day lasts 15h 06m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 06:29, lasts 8h 53m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mercury, from 06:30 to 07:45: 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.