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, 21 July 2026: day of Mars
- Sunrise
- 06:28
- Sunset
- 21:56
- Next sunrise
- 06:30
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars06:28 – 07:46
- 2☉︎ Sun07:46 – 09:03
- 3♀︎ Venus09:03 – 10:20
- 4☿︎ Mercury10:20 – 11:38
- 5☽︎ Moon11:38 – 12:55
- 6♄︎ Saturn12:55 – 14:12
- 7♃︎ Jupiter14:12 – 15:30
- 8♂︎ Mars15:30 – 16:47
- 9☉︎ Sun16:47 – 18:04
- 10♀︎ Venus18:04 – 19:22
- 11☿︎ Mercury19:22 – 20:39
- 12☽︎ Moon20:39 – 21:56
Night
- 1♄︎ Saturn21:56 – 22:39
- 2♃︎ Jupiter22:39 – 23:22
- 3♂︎ Mars23:22 – 00:05
- 4☉︎ Sun00:05 – 00:47
- 5♀︎ Venus00:47 – 01:30
- 6☿︎ Mercury01:30 – 02:13
- 7☽︎ Moon02:13 – 02:56
- 8♄︎ Saturn02:56 – 03:38
- 9♃︎ Jupiter03:38 – 04:21
- 10♂︎ Mars04:21 – 05:04
- 11☉︎ Sun05:04 – 05:47
- 12♀︎ Venus05:47 – 06:30
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Tuesday, 21 July 2026, the Sun rises at 06:28 and sets at 21:56: the day lasts 15h 28m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:30, lasts 8h 33m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Mars, from 06:28 to 07:46: 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.