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, 17 July 2026: day of Venus
- Sunrise
- 06:05
- Sunset
- 21:20
- Next sunrise
- 06:06
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/Paris).
Day
- 1♀︎ Venus06:05 – 07:22
- 2☿︎ Mercury07:22 – 08:38
- 3☽︎ Moon08:38 – 09:54
- 4♄︎ Saturn09:54 – 11:10
- 5♃︎ Jupiter11:10 – 12:26
- 6♂︎ Mars12:26 – 13:43
- 7☉︎ Sun13:43 – 14:59
- 8♀︎ Venus14:59 – 16:15
- 9☿︎ Mercury16:15 – 17:31
- 10☽︎ Moon17:31 – 18:47
- 11♄︎ Saturn18:47 – 20:04
- 12♃︎ Jupiter20:04 – 21:20
Night
- 1♂︎ Mars21:20 – 22:04
- 2☉︎ Sun22:04 – 22:48
- 3♀︎ Venus22:48 – 23:31
- 4☿︎ Mercury23:31 – 00:15
- 5☽︎ Moon00:15 – 00:59
- 6♄︎ Saturn00:59 – 01:43
- 7♃︎ Jupiter01:43 – 02:27
- 8♂︎ Mars02:27 – 03:11
- 9☉︎ Sun03:11 – 03:55
- 10♀︎ Venus03:55 – 04:39
- 11☿︎ Mercury04:39 – 05:22
- 12☽︎ Moon05:22 – 06:06
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Friday, 17 July 2026, the Sun rises at 06:05 and sets at 21:20: the day lasts 15h 14m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 06:06, lasts 8h 47m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Venus, from 06:05 to 07:22: 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.