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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 Friday, 18 December 2026: day of Venus

Sunrise
08:52
Sunset
17:14
Next sunrise
08:52

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

Day

  1. 1♀︎ Venus08:52 – 09:34
  2. 2☿︎ Mercury09:34 – 10:15
  3. 3☽︎ Moon10:15 – 10:57
  4. 4♄︎ Saturn10:57 – 11:39
  5. 5♃︎ Jupiter11:39 – 12:21
  6. 6♂︎ Mars12:21 – 13:03
  7. 7☉︎ Sun13:03 – 13:45
  8. 8♀︎ Venus13:45 – 14:26
  9. 9☿︎ Mercury14:26 – 15:08
  10. 10☽︎ Moon15:08 – 15:50
  11. 11♄︎ Saturn15:50 – 16:32
  12. 12♃︎ Jupiter16:32 – 17:14

Night

  1. 1♂︎ Mars17:14 – 18:32
  2. 2☉︎ Sun18:32 – 19:50
  3. 3♀︎ Venus19:50 – 21:08
  4. 4☿︎ Mercury21:08 – 22:27
  5. 5☽︎ Moon22:27 – 23:45
  6. 6♄︎ Saturn23:45 – 01:03
  7. 7♃︎ Jupiter01:03 – 02:21
  8. 8♂︎ Mars02:21 – 03:40
  9. 9☉︎ Sun03:40 – 04:58
  10. 10♀︎ Venus04:58 – 06:16
  11. 11☿︎ Mercury06:16 – 07:34
  12. 12☽︎ Moon07:34 – 08:52

Questions

How are the planetary hours calculated in Rennes?

On Friday, 18 December 2026, the Sun rises at 08:52 and sets at 17:14: the day lasts 8h 22m, that is twelve day hours of 42 min. The night, until the next sunrise at 08:52, lasts 15h 39m: twelve night hours of 1h 18m.

Which planet rules the first hour that day?

Venus, from 08:52 to 09:34: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.

My sky on my chart

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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.