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, 16 May 2025: day of Venus
- Sunrise
- 06:06
- Sunset
- 21:01
- Next sunrise
- 06:05
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Paris).
Day
- 1♀︎ Venus06:06 – 07:20
- 2☿︎ Mercury07:20 – 08:35
- 3☽︎ Moon08:35 – 09:50
- 4♄︎ Saturn09:50 – 11:04
- 5♃︎ Jupiter11:04 – 12:19
- 6♂︎ Mars12:19 – 13:33
- 7☉︎ Sun13:33 – 14:48
- 8♀︎ Venus14:48 – 16:03
- 9☿︎ Mercury16:03 – 17:17
- 10☽︎ Moon17:17 – 18:32
- 11♄︎ Saturn18:32 – 19:46
- 12♃︎ Jupiter19:46 – 21:01
Night
- 1♂︎ Mars21:01 – 21:46
- 2☉︎ Sun21:46 – 22:32
- 3♀︎ Venus22:32 – 23:17
- 4☿︎ Mercury23:17 – 00:02
- 5☽︎ Moon00:02 – 00:48
- 6♄︎ Saturn00:48 – 01:33
- 7♃︎ Jupiter01:33 – 02:18
- 8♂︎ Mars02:18 – 03:04
- 9☉︎ Sun03:04 – 03:49
- 10♀︎ Venus03:49 – 04:34
- 11☿︎ Mercury04:34 – 05:19
- 12☽︎ Moon05:19 – 06:05
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Friday, 16 May 2025, the Sun rises at 06:06 and sets at 21:01: the day lasts 14h 55m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 06:05, lasts 9h 04m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Venus, from 06:06 to 07:20: 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.