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 Saturday, 10 October 2026: day of Saturn
- Sunrise
- 07:46
- Sunset
- 19:01
- Next sunrise
- 07:47
A day hour lasts 56 min; a night hour, 1h 04m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn07:46 – 08:42
- 2♃︎ Jupiter08:42 – 09:38
- 3♂︎ Mars09:38 – 10:35
- 4☉︎ Sun10:35 – 11:31
- 5♀︎ Venus11:31 – 12:27
- 6☿︎ Mercury12:27 – 13:23
- 7☽︎ Moon13:23 – 14:20
- 8♄︎ Saturn14:20 – 15:16
- 9♃︎ Jupiter15:16 – 16:12
- 10♂︎ Mars16:12 – 17:08
- 11☉︎ Sun17:08 – 18:04
- 12♀︎ Venus18:04 – 19:01
Night
- 1☿︎ Mercury19:01 – 20:05
- 2☽︎ Moon20:05 – 21:08
- 3♄︎ Saturn21:08 – 22:12
- 4♃︎ Jupiter22:12 – 23:16
- 5♂︎ Mars23:16 – 00:20
- 6☉︎ Sun00:20 – 01:24
- 7♀︎ Venus01:24 – 02:28
- 8☿︎ Mercury02:28 – 03:32
- 9☽︎ Moon03:32 – 04:36
- 10♄︎ Saturn04:36 – 05:39
- 11♃︎ Jupiter05:39 – 06:43
- 12♂︎ Mars06:43 – 07:47
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Saturday, 10 October 2026, the Sun rises at 07:46 and sets at 19:01: the day lasts 11h 15m, that is twelve day hours of 56 min. The night, until the next sunrise at 07:47, lasts 12h 46m: twelve night hours of 1h 04m.
Which planet rules the first hour that day?
Saturn, from 07:46 to 08:42: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.