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, 24 September 2026: day of Jupiter
- Sunrise
- 07:26
- Sunset
- 19:31
- Next sunrise
- 07:27
A day hour lasts 1h 00m; a night hour, 1h 00m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter07:26 – 08:26
- 2♂︎ Mars08:26 – 09:27
- 3☉︎ Sun09:27 – 10:27
- 4♀︎ Venus10:27 – 11:27
- 5☿︎ Mercury11:27 – 12:28
- 6☽︎ Moon12:28 – 13:28
- 7♄︎ Saturn13:28 – 14:29
- 8♃︎ Jupiter14:29 – 15:29
- 9♂︎ Mars15:29 – 16:29
- 10☉︎ Sun16:29 – 17:30
- 11♀︎ Venus17:30 – 18:30
- 12☿︎ Mercury18:30 – 19:31
Night
- 1☽︎ Moon19:31 – 20:30
- 2♄︎ Saturn20:30 – 21:30
- 3♃︎ Jupiter21:30 – 22:30
- 4♂︎ Mars22:30 – 23:29
- 5☉︎ Sun23:29 – 00:29
- 6♀︎ Venus00:29 – 01:29
- 7☿︎ Mercury01:29 – 02:29
- 8☽︎ Moon02:29 – 03:28
- 9♄︎ Saturn03:28 – 04:28
- 10♃︎ Jupiter04:28 – 05:28
- 11♂︎ Mars05:28 – 06:27
- 12☉︎ Sun06:27 – 07:27
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Thursday, 24 September 2026, the Sun rises at 07:26 and sets at 19:31: the day lasts 12h 05m, that is twelve day hours of 1h 00m. The night, until the next sunrise at 07:27, lasts 11h 57m: twelve night hours of 1h 00m.
Which planet rules the first hour that day?
Jupiter, from 07:26 to 08:26: 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.
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.