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 Monday, 11 August 2025: day of the Moon
- Sunrise
- 06:33
- Sunset
- 20:50
- Next sunrise
- 06:35
A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Paris).
Day
- 1☽︎ Moon06:33 – 07:45
- 2♄︎ Saturn07:45 – 08:56
- 3♃︎ Jupiter08:56 – 10:07
- 4♂︎ Mars10:07 – 11:19
- 5☉︎ Sun11:19 – 12:30
- 6♀︎ Venus12:30 – 13:41
- 7☿︎ Mercury13:41 – 14:53
- 8☽︎ Moon14:53 – 16:04
- 9♄︎ Saturn16:04 – 17:15
- 10♃︎ Jupiter17:15 – 18:27
- 11♂︎ Mars18:27 – 19:38
- 12☉︎ Sun19:38 – 20:50
Night
- 1♀︎ Venus20:50 – 21:38
- 2☿︎ Mercury21:38 – 22:27
- 3☽︎ Moon22:27 – 23:16
- 4♄︎ Saturn23:16 – 00:05
- 5♃︎ Jupiter00:05 – 00:53
- 6♂︎ Mars00:53 – 01:42
- 7☉︎ Sun01:42 – 02:31
- 8♀︎ Venus02:31 – 03:20
- 9☿︎ Mercury03:20 – 04:08
- 10☽︎ Moon04:08 – 04:57
- 11♄︎ Saturn04:57 – 05:46
- 12♃︎ Jupiter05:46 – 06:35
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Monday, 11 August 2025, the Sun rises at 06:33 and sets at 20:50: the day lasts 14h 16m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 06:35, lasts 9h 45m: twelve night hours of 49 min.
Which planet rules the first hour that day?
The Moon, from 06:33 to 07:45: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.