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 Sunday, 6 September 2026: day of the Sun
- Sunrise
- 07:04
- Sunset
- 20:05
- Next sunrise
- 07:05
A day hour lasts 1h 05m; a night hour, 55 min. Local time (Europe/Paris).
Day
- 1☉︎ Sun07:04 – 08:09
- 2♀︎ Venus08:09 – 09:14
- 3☿︎ Mercury09:14 – 10:19
- 4☽︎ Moon10:19 – 11:24
- 5♄︎ Saturn11:24 – 12:30
- 6♃︎ Jupiter12:30 – 13:35
- 7♂︎ Mars13:35 – 14:40
- 8☉︎ Sun14:40 – 15:45
- 9♀︎ Venus15:45 – 16:50
- 10☿︎ Mercury16:50 – 17:55
- 11☽︎ Moon17:55 – 19:00
- 12♄︎ Saturn19:00 – 20:05
Night
- 1♃︎ Jupiter20:05 – 21:00
- 2♂︎ Mars21:00 – 21:55
- 3☉︎ Sun21:55 – 22:50
- 4♀︎ Venus22:50 – 23:45
- 5☿︎ Mercury23:45 – 00:40
- 6☽︎ Moon00:40 – 01:35
- 7♄︎ Saturn01:35 – 02:30
- 8♃︎ Jupiter02:30 – 03:25
- 9♂︎ Mars03:25 – 04:20
- 10☉︎ Sun04:20 – 05:15
- 11♀︎ Venus05:15 – 06:10
- 12☿︎ Mercury06:10 – 07:05
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Sunday, 6 September 2026, the Sun rises at 07:04 and sets at 20:05: the day lasts 13h 01m, that is twelve day hours of 1h 05m. The night, until the next sunrise at 07:05, lasts 11h 01m: twelve night hours of 55 min.
Which planet rules the first hour that day?
The Sun, from 07:04 to 08:09: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.