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, 28 September 2026: day of the Moon
- Sunrise
- 07:31
- Sunset
- 19:23
- Next sunrise
- 07:32
A day hour lasts 59 min; a night hour, 1h 01m. Local time (Europe/Paris).
Day
- 1☽︎ Moon07:31 – 08:30
- 2♄︎ Saturn08:30 – 09:30
- 3♃︎ Jupiter09:30 – 10:29
- 4♂︎ Mars10:29 – 11:28
- 5☉︎ Sun11:28 – 12:28
- 6♀︎ Venus12:28 – 13:27
- 7☿︎ Mercury13:27 – 14:26
- 8☽︎ Moon14:26 – 15:26
- 9♄︎ Saturn15:26 – 16:25
- 10♃︎ Jupiter16:25 – 17:24
- 11♂︎ Mars17:24 – 18:24
- 12☉︎ Sun18:24 – 19:23
Night
- 1♀︎ Venus19:23 – 20:24
- 2☿︎ Mercury20:24 – 21:25
- 3☽︎ Moon21:25 – 22:25
- 4♄︎ Saturn22:25 – 23:26
- 5♃︎ Jupiter23:26 – 00:27
- 6♂︎ Mars00:27 – 01:28
- 7☉︎ Sun01:28 – 02:28
- 8♀︎ Venus02:28 – 03:29
- 9☿︎ Mercury03:29 – 04:30
- 10☽︎ Moon04:30 – 05:31
- 11♄︎ Saturn05:31 – 06:31
- 12♃︎ Jupiter06:31 – 07:32
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Monday, 28 September 2026, the Sun rises at 07:31 and sets at 19:23: the day lasts 11h 52m, that is twelve day hours of 59 min. The night, until the next sunrise at 07:32, lasts 12h 09m: twelve night hours of 1h 01m.
Which planet rules the first hour that day?
The Moon, from 07:31 to 08:30: 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.