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 Wednesday, 18 November 2026: day of Mercury
- Sunrise
- 07:39
- Sunset
- 17:05
- Next sunrise
- 07:40
A day hour lasts 47 min; a night hour, 1h 13m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury07:39 – 08:26
- 2☽︎ Moon08:26 – 09:13
- 3♄︎ Saturn09:13 – 10:00
- 4♃︎ Jupiter10:00 – 10:47
- 5♂︎ Mars10:47 – 11:34
- 6☉︎ Sun11:34 – 12:22
- 7♀︎ Venus12:22 – 13:09
- 8☿︎ Mercury13:09 – 13:56
- 9☽︎ Moon13:56 – 14:43
- 10♄︎ Saturn14:43 – 15:30
- 11♃︎ Jupiter15:30 – 16:17
- 12♂︎ Mars16:17 – 17:05
Night
- 1☉︎ Sun17:05 – 18:17
- 2♀︎ Venus18:17 – 19:30
- 3☿︎ Mercury19:30 – 20:43
- 4☽︎ Moon20:43 – 21:56
- 5♄︎ Saturn21:56 – 23:09
- 6♃︎ Jupiter23:09 – 00:22
- 7♂︎ Mars00:22 – 01:35
- 8☉︎ Sun01:35 – 02:48
- 9♀︎ Venus02:48 – 04:01
- 10☿︎ Mercury04:01 – 05:14
- 11☽︎ Moon05:14 – 06:27
- 12♄︎ Saturn06:27 – 07:40
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Wednesday, 18 November 2026, the Sun rises at 07:39 and sets at 17:05: the day lasts 9h 26m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:40, lasts 14h 35m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mercury, from 07:39 to 08:26: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.