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 April 2026: day of Mars
- Sunrise
- 07:06
- Sunset
- 21:05
- Next sunrise
- 07:04
A day hour lasts 1h 10m; a night hour, 50 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:06 – 08:15
- 2☉︎ Sun08:15 – 09:25
- 3♀︎ Venus09:25 – 10:35
- 4☿︎ Mercury10:35 – 11:45
- 5☽︎ Moon11:45 – 12:55
- 6♄︎ Saturn12:55 – 14:05
- 7♃︎ Jupiter14:05 – 15:15
- 8♂︎ Mars15:15 – 16:25
- 9☉︎ Sun16:25 – 17:35
- 10♀︎ Venus17:35 – 18:45
- 11☿︎ Mercury18:45 – 19:55
- 12☽︎ Moon19:55 – 21:05
Night
- 1♄︎ Saturn21:05 – 21:55
- 2♃︎ Jupiter21:55 – 22:45
- 3♂︎ Mars22:45 – 23:35
- 4☉︎ Sun23:35 – 00:25
- 5♀︎ Venus00:25 – 01:15
- 6☿︎ Mercury01:15 – 02:04
- 7☽︎ Moon02:04 – 02:54
- 8♄︎ Saturn02:54 – 03:44
- 9♃︎ Jupiter03:44 – 04:34
- 10♂︎ Mars04:34 – 05:24
- 11☉︎ Sun05:24 – 06:14
- 12♀︎ Venus06:14 – 07:04
Other cities · France
Questions
How are the planetary hours calculated in Rennes?
On Tuesday, 21 April 2026, the Sun rises at 07:06 and sets at 21:05: the day lasts 14h 00m, that is twelve day hours of 1h 10m. The night, until the next sunrise at 07:04, lasts 9h 58m: twelve night hours of 50 min.
Which planet rules the first hour that day?
Mars, from 07:06 to 08:15: 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.