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, 21 September 2026: day of the Moon
- Sunrise
- 07:22
- Sunset
- 19:36
- Next sunrise
- 07:24
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Europe/Paris).
Day
- 1☽︎ Moon07:22 – 08:23
- 2♄︎ Saturn08:23 – 09:25
- 3♃︎ Jupiter09:25 – 10:26
- 4♂︎ Mars10:26 – 11:27
- 5☉︎ Sun11:27 – 12:28
- 6♀︎ Venus12:28 – 13:29
- 7☿︎ Mercury13:29 – 14:30
- 8☽︎ Moon14:30 – 15:32
- 9♄︎ Saturn15:32 – 16:33
- 10♃︎ Jupiter16:33 – 17:34
- 11♂︎ Mars17:34 – 18:35
- 12☉︎ Sun18:35 – 19:36
Night
- 1♀︎ Venus19:36 – 20:35
- 2☿︎ Mercury20:35 – 21:34
- 3☽︎ Moon21:34 – 22:33
- 4♄︎ Saturn22:33 – 23:32
- 5♃︎ Jupiter23:32 – 00:31
- 6♂︎ Mars00:31 – 01:30
- 7☉︎ Sun01:30 – 02:29
- 8♀︎ Venus02:29 – 03:28
- 9☿︎ Mercury03:28 – 04:27
- 10☽︎ Moon04:27 – 05:26
- 11♄︎ Saturn05:26 – 06:25
- 12♃︎ Jupiter06:25 – 07:24
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Monday, 21 September 2026, the Sun rises at 07:22 and sets at 19:36: the day lasts 12h 14m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 07:24, lasts 11h 47m: twelve night hours of 59 min.
Which planet rules the first hour that day?
The Moon, from 07:22 to 08:23: 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.