AstroXP ▶︎All our videos by signVideos
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 Friday, 23 January 2026: day of Venus

Sunrise
08:06
Sunset
17:31
Next sunrise
08:05

A day hour lasts 47 min; a night hour, 1h 13m. Local time (Europe/Paris).

Day

  1. 1♀︎ Venus08:06 – 08:53
  2. 2☿︎ Mercury08:53 – 09:40
  3. 3☽︎ Moon09:40 – 10:27
  4. 4♄︎ Saturn10:27 – 11:15
  5. 5♃︎ Jupiter11:15 – 12:02
  6. 6♂︎ Mars12:02 – 12:49
  7. 7☉︎ Sun12:49 – 13:36
  8. 8♀︎ Venus13:36 – 14:23
  9. 9☿︎ Mercury14:23 – 15:10
  10. 10☽︎ Moon15:10 – 15:57
  11. 11♄︎ Saturn15:57 – 16:44
  12. 12♃︎ Jupiter16:44 – 17:31

Night

  1. 1♂︎ Mars17:31 – 18:44
  2. 2☉︎ Sun18:44 – 19:57
  3. 3♀︎ Venus19:57 – 21:10
  4. 4☿︎ Mercury21:10 – 22:23
  5. 5☽︎ Moon22:23 – 23:35
  6. 6♄︎ Saturn23:35 – 00:48
  7. 7♃︎ Jupiter00:48 – 02:01
  8. 8♂︎ Mars02:01 – 03:14
  9. 9☉︎ Sun03:14 – 04:27
  10. 10♀︎ Venus04:27 – 05:40
  11. 11☿︎ Mercury05:40 – 06:52
  12. 12☽︎ Moon06:52 – 08:05

Questions

How are the planetary hours calculated in Grenoble?

On Friday, 23 January 2026, the Sun rises at 08:06 and sets at 17:31: the day lasts 9h 25m, that is twelve day hours of 47 min. The night, until the next sunrise at 08:05, lasts 14h 34m: twelve night hours of 1h 13m.

Which planet rules the first hour that day?

Venus, from 08:06 to 08:53: 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

On a computer? Scan this code with your phone.

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.