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 Tuesday, 1 December 2026: day of Mars
- Sunrise
- 07:55
- Sunset
- 16:56
- Next sunrise
- 07:56
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:55 – 08:40
- 2☉︎ Sun08:40 – 09:25
- 3♀︎ Venus09:25 – 10:10
- 4☿︎ Mercury10:10 – 10:55
- 5☽︎ Moon10:55 – 11:40
- 6♄︎ Saturn11:40 – 12:26
- 7♃︎ Jupiter12:26 – 13:11
- 8♂︎ Mars13:11 – 13:56
- 9☉︎ Sun13:56 – 14:41
- 10♀︎ Venus14:41 – 15:26
- 11☿︎ Mercury15:26 – 16:11
- 12☽︎ Moon16:11 – 16:56
Night
- 1♄︎ Saturn16:56 – 18:11
- 2♃︎ Jupiter18:11 – 19:26
- 3♂︎ Mars19:26 – 20:41
- 4☉︎ Sun20:41 – 21:56
- 5♀︎ Venus21:56 – 23:11
- 6☿︎ Mercury23:11 – 00:26
- 7☽︎ Moon00:26 – 01:41
- 8♄︎ Saturn01:41 – 02:56
- 9♃︎ Jupiter02:56 – 04:11
- 10♂︎ Mars04:11 – 05:26
- 11☉︎ Sun05:26 – 06:41
- 12♀︎ Venus06:41 – 07:56
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Tuesday, 1 December 2026, the Sun rises at 07:55 and sets at 16:56: the day lasts 9h 01m, that is twelve day hours of 45 min. The night, until the next sunrise at 07:56, lasts 15h 00m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Mars, from 07:55 to 08:40: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.