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, 25 June 2026: day of Jupiter
- Sunrise
- 05:50
- Sunset
- 21:28
- Next sunrise
- 05:51
A day hour lasts 1h 18m; a night hour, 42 min. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter05:50 – 07:08
- 2♂︎ Mars07:08 – 08:27
- 3☉︎ Sun08:27 – 09:45
- 4♀︎ Venus09:45 – 11:03
- 5☿︎ Mercury11:03 – 12:21
- 6☽︎ Moon12:21 – 13:39
- 7♄︎ Saturn13:39 – 14:57
- 8♃︎ Jupiter14:57 – 16:16
- 9♂︎ Mars16:16 – 17:34
- 10☉︎ Sun17:34 – 18:52
- 11♀︎ Venus18:52 – 20:10
- 12☿︎ Mercury20:10 – 21:28
Night
- 1☽︎ Moon21:28 – 22:10
- 2♄︎ Saturn22:10 – 22:52
- 3♃︎ Jupiter22:52 – 23:34
- 4♂︎ Mars23:34 – 00:16
- 5☉︎ Sun00:16 – 00:58
- 6♀︎ Venus00:58 – 01:39
- 7☿︎ Mercury01:39 – 02:21
- 8☽︎ Moon02:21 – 03:03
- 9♄︎ Saturn03:03 – 03:45
- 10♃︎ Jupiter03:45 – 04:27
- 11♂︎ Mars04:27 – 05:09
- 12☉︎ Sun05:09 – 05:51
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Thursday, 25 June 2026, the Sun rises at 05:50 and sets at 21:28: the day lasts 15h 38m, that is twelve day hours of 1h 18m. The night, until the next sunrise at 05:51, lasts 8h 22m: twelve night hours of 42 min.
Which planet rules the first hour that day?
Jupiter, from 05:50 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.