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 Wednesday, 2 December 2026: day of Mercury
- Sunrise
- 07:56
- Sunset
- 16:56
- Next sunrise
- 07:57
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury07:56 – 08:41
- 2☽︎ Moon08:41 – 09:26
- 3♄︎ Saturn09:26 – 10:11
- 4♃︎ Jupiter10:11 – 10:56
- 5♂︎ Mars10:56 – 11:41
- 6☉︎ Sun11:41 – 12:26
- 7♀︎ Venus12:26 – 13:11
- 8☿︎ Mercury13:11 – 13:56
- 9☽︎ Moon13:56 – 14:41
- 10♄︎ Saturn14:41 – 15:26
- 11♃︎ Jupiter15:26 – 16:11
- 12♂︎ Mars16:11 – 16:56
Night
- 1☉︎ Sun16:56 – 18:11
- 2♀︎ Venus18:11 – 19:26
- 3☿︎ Mercury19:26 – 20:41
- 4☽︎ Moon20:41 – 21:56
- 5♄︎ Saturn21:56 – 23:11
- 6♃︎ Jupiter23:11 – 00:26
- 7♂︎ Mars00:26 – 01:42
- 8☉︎ Sun01:42 – 02:57
- 9♀︎ Venus02:57 – 04:12
- 10☿︎ Mercury04:12 – 05:27
- 11☽︎ Moon05:27 – 06:42
- 12♄︎ Saturn06:42 – 07:57
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Wednesday, 2 December 2026, the Sun rises at 07:56 and sets at 16:56: the day lasts 8h 59m, that is twelve day hours of 45 min. The night, until the next sunrise at 07:57, lasts 15h 02m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Mercury, from 07:56 to 08:41: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.