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, 8 April 2025: day of Mars
- Sunrise
- 07:04
- Sunset
- 20:14
- Next sunrise
- 07:02
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:04 – 08:10
- 2☉︎ Sun08:10 – 09:16
- 3♀︎ Venus09:16 – 10:21
- 4☿︎ Mercury10:21 – 11:27
- 5☽︎ Moon11:27 – 12:33
- 6♄︎ Saturn12:33 – 13:39
- 7♃︎ Jupiter13:39 – 14:45
- 8♂︎ Mars14:45 – 15:50
- 9☉︎ Sun15:50 – 16:56
- 10♀︎ Venus16:56 – 18:02
- 11☿︎ Mercury18:02 – 19:08
- 12☽︎ Moon19:08 – 20:14
Night
- 1♄︎ Saturn20:14 – 21:08
- 2♃︎ Jupiter21:08 – 22:02
- 3♂︎ Mars22:02 – 22:56
- 4☉︎ Sun22:56 – 23:50
- 5♀︎ Venus23:50 – 00:44
- 6☿︎ Mercury00:44 – 01:38
- 7☽︎ Moon01:38 – 02:32
- 8♄︎ Saturn02:32 – 03:26
- 9♃︎ Jupiter03:26 – 04:20
- 10♂︎ Mars04:20 – 05:14
- 11☉︎ Sun05:14 – 06:08
- 12♀︎ Venus06:08 – 07:02
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Tuesday, 8 April 2025, the Sun rises at 07:04 and sets at 20:14: the day lasts 13h 10m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 07:02, lasts 10h 49m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mars, from 07:04 to 08:10: 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.