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, 29 October 2026: day of Jupiter
- Sunrise
- 07:11
- Sunset
- 17:29
- Next sunrise
- 07:13
A day hour lasts 51 min; a night hour, 1h 09m. Local time (Europe/Paris).
Day
- 1♃︎ Jupiter07:11 – 08:03
- 2♂︎ Mars08:03 – 08:54
- 3☉︎ Sun08:54 – 09:46
- 4♀︎ Venus09:46 – 10:37
- 5☿︎ Mercury10:37 – 11:29
- 6☽︎ Moon11:29 – 12:20
- 7♄︎ Saturn12:20 – 13:12
- 8♃︎ Jupiter13:12 – 14:03
- 9♂︎ Mars14:03 – 14:55
- 10☉︎ Sun14:55 – 15:46
- 11♀︎ Venus15:46 – 16:37
- 12☿︎ Mercury16:37 – 17:29
Night
- 1☽︎ Moon17:29 – 18:38
- 2♄︎ Saturn18:38 – 19:46
- 3♃︎ Jupiter19:46 – 20:55
- 4♂︎ Mars20:55 – 22:03
- 5☉︎ Sun22:03 – 23:12
- 6♀︎ Venus23:12 – 00:21
- 7☿︎ Mercury00:21 – 01:29
- 8☽︎ Moon01:29 – 02:38
- 9♄︎ Saturn02:38 – 03:47
- 10♃︎ Jupiter03:47 – 04:55
- 11♂︎ Mars04:55 – 06:04
- 12☉︎ Sun06:04 – 07:13
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Thursday, 29 October 2026, the Sun rises at 07:11 and sets at 17:29: the day lasts 10h 18m, that is twelve day hours of 51 min. The night, until the next sunrise at 07:13, lasts 13h 44m: twelve night hours of 1h 09m.
Which planet rules the first hour that day?
Jupiter, from 07:11 to 08:03: 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.