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 Thursday, 4 June 2026: day of Jupiter
- Sunrise
- 05:51
- Sunset
- 21:19
- Next sunrise
- 05:51
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter05:51 – 07:08
- 2♂︎ Mars07:08 – 08:26
- 3☉︎ Sun08:26 – 09:43
- 4♀︎ Venus09:43 – 11:01
- 5☿︎ Mercury11:01 – 12:18
- 6☽︎ Moon12:18 – 13:35
- 7♄︎ Saturn13:35 – 14:53
- 8♃︎ Jupiter14:53 – 16:10
- 9♂︎ Mars16:10 – 17:27
- 10☉︎ Sun17:27 – 18:45
- 11♀︎ Venus18:45 – 20:02
- 12☿︎ Mercury20:02 – 21:19
Night
- 1☽︎ Moon21:19 – 22:02
- 2♄︎ Saturn22:02 – 22:45
- 3♃︎ Jupiter22:45 – 23:27
- 4♂︎ Mars23:27 – 00:10
- 5☉︎ Sun00:10 – 00:52
- 6♀︎ Venus00:52 – 01:35
- 7☿︎ Mercury01:35 – 02:18
- 8☽︎ Moon02:18 – 03:00
- 9♄︎ Saturn03:00 – 03:43
- 10♃︎ Jupiter03:43 – 04:25
- 11♂︎ Mars04:25 – 05:08
- 12☉︎ Sun05:08 – 05:51
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Thursday, 4 June 2026, the Sun rises at 05:51 and sets at 21:19: the day lasts 15h 28m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:51, lasts 8h 31m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Jupiter, from 05:51 to 07:08: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.