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 Friday, 23 May 2025: day of Venus
- Sunrise
- 05:59
- Sunset
- 21:09
- Next sunrise
- 05:58
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/Paris).
Day
- 1♀︎ Venus05:59 – 07:15
- 2☿︎ Mercury07:15 – 08:31
- 3☽︎ Moon08:31 – 09:46
- 4♄︎ Saturn09:46 – 11:02
- 5♃︎ Jupiter11:02 – 12:18
- 6♂︎ Mars12:18 – 13:34
- 7☉︎ Sun13:34 – 14:50
- 8♀︎ Venus14:50 – 16:05
- 9☿︎ Mercury16:05 – 17:21
- 10☽︎ Moon17:21 – 18:37
- 11♄︎ Saturn18:37 – 19:53
- 12♃︎ Jupiter19:53 – 21:09
Night
- 1♂︎ Mars21:09 – 21:53
- 2☉︎ Sun21:53 – 22:37
- 3♀︎ Venus22:37 – 23:21
- 4☿︎ Mercury23:21 – 00:05
- 5☽︎ Moon00:05 – 00:49
- 6♄︎ Saturn00:49 – 01:33
- 7♃︎ Jupiter01:33 – 02:17
- 8♂︎ Mars02:17 – 03:02
- 9☉︎ Sun03:02 – 03:46
- 10♀︎ Venus03:46 – 04:30
- 11☿︎ Mercury04:30 – 05:14
- 12☽︎ Moon05:14 – 05:58
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Friday, 23 May 2025, the Sun rises at 05:59 and sets at 21:09: the day lasts 15h 10m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 05:58, lasts 8h 50m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Venus, from 05:59 to 07:15: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.