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, 12 October 2026: day of the Moon
- Sunrise
- 07:48
- Sunset
- 18:57
- Next sunrise
- 07:50
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/Paris).
Day
- 1☽︎ Moon07:48 – 08:44
- 2♄︎ Saturn08:44 – 09:40
- 3♃︎ Jupiter09:40 – 10:36
- 4♂︎ Mars10:36 – 11:31
- 5☉︎ Sun11:31 – 12:27
- 6♀︎ Venus12:27 – 13:23
- 7☿︎ Mercury13:23 – 14:18
- 8☽︎ Moon14:18 – 15:14
- 9♄︎ Saturn15:14 – 16:10
- 10♃︎ Jupiter16:10 – 17:06
- 11♂︎ Mars17:06 – 18:01
- 12☉︎ Sun18:01 – 18:57
Night
- 1♀︎ Venus18:57 – 20:01
- 2☿︎ Mercury20:01 – 21:06
- 3☽︎ Moon21:06 – 22:10
- 4♄︎ Saturn22:10 – 23:15
- 5♃︎ Jupiter23:15 – 00:19
- 6♂︎ Mars00:19 – 01:23
- 7☉︎ Sun01:23 – 02:28
- 8♀︎ Venus02:28 – 03:32
- 9☿︎ Mercury03:32 – 04:37
- 10☽︎ Moon04:37 – 05:41
- 11♄︎ Saturn05:41 – 06:45
- 12♃︎ Jupiter06:45 – 07:50
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Monday, 12 October 2026, the Sun rises at 07:48 and sets at 18:57: the day lasts 11h 09m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:50, lasts 12h 53m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
The Moon, from 07:48 to 08:44: 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.