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, 12 July 2026: day of the Sun
- Sunrise
- 06:01
- Sunset
- 21:23
- Next sunrise
- 06:02
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1☉︎ Sun06:01 – 07:18
- 2♀︎ Venus07:18 – 08:35
- 3☿︎ Mercury08:35 – 09:51
- 4☽︎ Moon09:51 – 11:08
- 5♄︎ Saturn11:08 – 12:25
- 6♃︎ Jupiter12:25 – 13:42
- 7♂︎ Mars13:42 – 14:59
- 8☉︎ Sun14:59 – 16:16
- 9♀︎ Venus16:16 – 17:33
- 10☿︎ Mercury17:33 – 18:50
- 11☽︎ Moon18:50 – 20:06
- 12♄︎ Saturn20:06 – 21:23
Night
- 1♃︎ Jupiter21:23 – 22:07
- 2♂︎ Mars22:07 – 22:50
- 3☉︎ Sun22:50 – 23:33
- 4♀︎ Venus23:33 – 00:16
- 5☿︎ Mercury00:16 – 00:59
- 6☽︎ Moon00:59 – 01:43
- 7♄︎ Saturn01:43 – 02:26
- 8♃︎ Jupiter02:26 – 03:09
- 9♂︎ Mars03:09 – 03:52
- 10☉︎ Sun03:52 – 04:35
- 11♀︎ Venus04:35 – 05:19
- 12☿︎ Mercury05:19 – 06:02
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Sunday, 12 July 2026, the Sun rises at 06:01 and sets at 21:23: the day lasts 15h 22m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 06:02, lasts 8h 38m: twelve night hours of 43 min.
Which planet rules the first hour that day?
The Sun, from 06:01 to 07:18: 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.