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Planetary hours · Grenoble (France)

Planetary hours
in Grenoble.

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 Thursday, 25 December 2025: day of Jupiter

Sunrise
08:14
Sunset
16:59
Next sunrise
08:15

A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).

Day

  1. 1♃︎ Jupiter08:14 – 08:58
  2. 2♂︎ Mars08:58 – 09:42
  3. 3☉︎ Sun09:42 – 10:26
  4. 4♀︎ Venus10:26 – 11:09
  5. 5☿︎ Mercury11:09 – 11:53
  6. 6☽︎ Moon11:53 – 12:37
  7. 7♄︎ Saturn12:37 – 13:21
  8. 8♃︎ Jupiter13:21 – 14:04
  9. 9♂︎ Mars14:04 – 14:48
  10. 10☉︎ Sun14:48 – 15:32
  11. 11♀︎ Venus15:32 – 16:16
  12. 12☿︎ Mercury16:16 – 16:59

Night

  1. 1☽︎ Moon16:59 – 18:16
  2. 2♄︎ Saturn18:16 – 19:32
  3. 3♃︎ Jupiter19:32 – 20:48
  4. 4♂︎ Mars20:48 – 22:05
  5. 5☉︎ Sun22:05 – 23:21
  6. 6♀︎ Venus23:21 – 00:37
  7. 7☿︎ Mercury00:37 – 01:53
  8. 8☽︎ Moon01:53 – 03:10
  9. 9♄︎ Saturn03:10 – 04:26
  10. 10♃︎ Jupiter04:26 – 05:42
  11. 11♂︎ Mars05:42 – 06:58
  12. 12☉︎ Sun06:58 – 08:15

Other cities · France

Questions

How are the planetary hours calculated in Grenoble?

On Thursday, 25 December 2025, the Sun rises at 08:14 and sets at 16:59: the day lasts 8h 45m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:15, lasts 15h 15m: twelve night hours of 1h 16m.

Which planet rules the first hour that day?

Jupiter, from 08:14 to 08:58: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.