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, 4 August 2026: day of Mars
- Sunrise
- 06:46
- Sunset
- 21:38
- Next sunrise
- 06:47
A day hour lasts 1h 14m; a night hour, 46 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars06:46 – 08:00
- 2☉︎ Sun08:00 – 09:14
- 3♀︎ Venus09:14 – 10:29
- 4☿︎ Mercury10:29 – 11:43
- 5☽︎ Moon11:43 – 12:58
- 6♄︎ Saturn12:58 – 14:12
- 7♃︎ Jupiter14:12 – 15:26
- 8♂︎ Mars15:26 – 16:41
- 9☉︎ Sun16:41 – 17:55
- 10♀︎ Venus17:55 – 19:09
- 11☿︎ Mercury19:09 – 20:24
- 12☽︎ Moon20:24 – 21:38
Night
- 1♄︎ Saturn21:38 – 22:24
- 2♃︎ Jupiter22:24 – 23:09
- 3♂︎ Mars23:09 – 23:55
- 4☉︎ Sun23:55 – 00:41
- 5♀︎ Venus00:41 – 01:27
- 6☿︎ Mercury01:27 – 02:13
- 7☽︎ Moon02:13 – 02:58
- 8♄︎ Saturn02:58 – 03:44
- 9♃︎ Jupiter03:44 – 04:30
- 10♂︎ Mars04:30 – 05:16
- 11☉︎ Sun05:16 – 06:01
- 12♀︎ Venus06:01 – 06:47
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Tuesday, 4 August 2026, the Sun rises at 06:46 and sets at 21:38: the day lasts 14h 52m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 06:47, lasts 9h 09m: twelve night hours of 46 min.
Which planet rules the first hour that day?
Mars, from 06:46 to 08:00: 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.