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 Monday, 13 April 2026: day of the Moon
- Sunrise
- 06:56
- Sunset
- 20:20
- Next sunrise
- 06:54
A day hour lasts 1h 07m; a night hour, 53 min. Local time (Europe/Paris).
Day
- 1☽︎ Moon06:56 – 08:03
- 2♄︎ Saturn08:03 – 09:10
- 3♃︎ Jupiter09:10 – 10:17
- 4♂︎ Mars10:17 – 11:24
- 5☉︎ Sun11:24 – 12:31
- 6♀︎ Venus12:31 – 13:38
- 7☿︎ Mercury13:38 – 14:45
- 8☽︎ Moon14:45 – 15:52
- 9♄︎ Saturn15:52 – 16:59
- 10♃︎ Jupiter16:59 – 18:06
- 11♂︎ Mars18:06 – 19:13
- 12☉︎ Sun19:13 – 20:20
Night
- 1♀︎ Venus20:20 – 21:13
- 2☿︎ Mercury21:13 – 22:05
- 3☽︎ Moon22:05 – 22:58
- 4♄︎ Saturn22:58 – 23:51
- 5♃︎ Jupiter23:51 – 00:44
- 6♂︎ Mars00:44 – 01:37
- 7☉︎ Sun01:37 – 02:30
- 8♀︎ Venus02:30 – 03:22
- 9☿︎ Mercury03:22 – 04:15
- 10☽︎ Moon04:15 – 05:08
- 11♄︎ Saturn05:08 – 06:01
- 12♃︎ Jupiter06:01 – 06:54
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Monday, 13 April 2026, the Sun rises at 06:56 and sets at 20:20: the day lasts 13h 24m, that is twelve day hours of 1h 07m. The night, until the next sunrise at 06:54, lasts 10h 34m: twelve night hours of 53 min.
Which planet rules the first hour that day?
The Moon, from 06:56 to 08:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.