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 Tuesday, 22 September 2026: day of Mars
- Sunrise
- 07:24
- Sunset
- 19:34
- Next sunrise
- 07:25
A day hour lasts 1h 01m; a night hour, 59 min. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:24 – 08:24
- 2☉︎ Sun08:24 – 09:25
- 3♀︎ Venus09:25 – 10:26
- 4☿︎ Mercury10:26 – 11:27
- 5☽︎ Moon11:27 – 12:28
- 6♄︎ Saturn12:28 – 13:29
- 7♃︎ Jupiter13:29 – 14:30
- 8♂︎ Mars14:30 – 15:31
- 9☉︎ Sun15:31 – 16:32
- 10♀︎ Venus16:32 – 17:33
- 11☿︎ Mercury17:33 – 18:34
- 12☽︎ Moon18:34 – 19:34
Night
- 1♄︎ Saturn19:34 – 20:34
- 2♃︎ Jupiter20:34 – 21:33
- 3♂︎ Mars21:33 – 22:32
- 4☉︎ Sun22:32 – 23:31
- 5♀︎ Venus23:31 – 00:30
- 6☿︎ Mercury00:30 – 01:30
- 7☽︎ Moon01:30 – 02:29
- 8♄︎ Saturn02:29 – 03:28
- 9♃︎ Jupiter03:28 – 04:27
- 10♂︎ Mars04:27 – 05:26
- 11☉︎ Sun05:26 – 06:26
- 12♀︎ Venus06:26 – 07:25
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Tuesday, 22 September 2026, the Sun rises at 07:24 and sets at 19:34: the day lasts 12h 11m, that is twelve day hours of 1h 01m. The night, until the next sunrise at 07:25, lasts 11h 50m: twelve night hours of 59 min.
Which planet rules the first hour that day?
Mars, from 07:24 to 08:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.