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Planetary hours · Rennes (France)

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, 23 December 2025: day of Mars

Sunrise
08:55
Sunset
17:16
Next sunrise
08:55

A day hour lasts 42 min; a night hour, 1h 18m. Local time (Europe/Paris).

Day

  1. 1♂︎ Mars08:55 – 09:36
  2. 2☉︎ Sun09:36 – 10:18
  3. 3♀︎ Venus10:18 – 11:00
  4. 4☿︎ Mercury11:00 – 11:42
  5. 5☽︎ Moon11:42 – 12:24
  6. 6♄︎ Saturn12:24 – 13:05
  7. 7♃︎ Jupiter13:05 – 13:47
  8. 8♂︎ Mars13:47 – 14:29
  9. 9☉︎ Sun14:29 – 15:11
  10. 10♀︎ Venus15:11 – 15:53
  11. 11☿︎ Mercury15:53 – 16:34
  12. 12☽︎ Moon16:34 – 17:16

Night

  1. 1♄︎ Saturn17:16 – 18:34
  2. 2♃︎ Jupiter18:34 – 19:53
  3. 3♂︎ Mars19:53 – 21:11
  4. 4☉︎ Sun21:11 – 22:29
  5. 5♀︎ Venus22:29 – 23:47
  6. 6☿︎ Mercury23:47 – 01:06
  7. 7☽︎ Moon01:06 – 02:24
  8. 8♄︎ Saturn02:24 – 03:42
  9. 9♃︎ Jupiter03:42 – 05:00
  10. 10♂︎ Mars05:00 – 06:19
  11. 11☉︎ Sun06:19 – 07:37
  12. 12♀︎ Venus07:37 – 08:55

Other cities · France

Questions

How are the planetary hours calculated in Rennes?

On Tuesday, 23 December 2025, the Sun rises at 08:55 and sets at 17:16: the day lasts 8h 21m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:55, lasts 15h 39m: twelve night hours of 1h 18m.

Which planet rules the first hour that day?

Mars, from 08:55 to 09:36: 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.

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Calendars

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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.