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 Saturday, 11 July 2026: day of Saturn
- Sunrise
- 06:00
- Sunset
- 21:24
- Next sunrise
- 06:01
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1♄︎ Saturn06:00 – 07:17
- 2♃︎ Jupiter07:17 – 08:34
- 3♂︎ Mars08:34 – 09:51
- 4☉︎ Sun09:51 – 11:08
- 5♀︎ Venus11:08 – 12:25
- 6☿︎ Mercury12:25 – 13:42
- 7☽︎ Moon13:42 – 14:59
- 8♄︎ Saturn14:59 – 16:16
- 9♃︎ Jupiter16:16 – 17:33
- 10♂︎ Mars17:33 – 18:50
- 11☉︎ Sun18:50 – 20:07
- 12♀︎ Venus20:07 – 21:24
Night
- 1☿︎ Mercury21:24 – 22:07
- 2☽︎ Moon22:07 – 22:50
- 3♄︎ Saturn22:50 – 23:33
- 4♃︎ Jupiter23:33 – 00:16
- 5♂︎ Mars00:16 – 00:59
- 6☉︎ Sun00:59 – 01:42
- 7♀︎ Venus01:42 – 02:25
- 8☿︎ Mercury02:25 – 03:09
- 9☽︎ Moon03:09 – 03:52
- 10♄︎ Saturn03:52 – 04:35
- 11♃︎ Jupiter04:35 – 05:18
- 12♂︎ Mars05:18 – 06:01
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Saturday, 11 July 2026, the Sun rises at 06:00 and sets at 21:24: the day lasts 15h 24m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:01, lasts 8h 37m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Saturn, from 06:00 to 07:17: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.