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 Saturday, 20 February 2027: day of Saturn
- Sunrise
- 07:31
- Sunset
- 18:11
- Next sunrise
- 07:29
A day hour lasts 53 min; a night hour, 1h 07m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn07:31 – 08:24
- 2♃︎ Jupiter08:24 – 09:17
- 3♂︎ Mars09:17 – 10:11
- 4☉︎ Sun10:11 – 11:04
- 5♀︎ Venus11:04 – 11:57
- 6☿︎ Mercury11:57 – 12:51
- 7☽︎ Moon12:51 – 13:44
- 8♄︎ Saturn13:44 – 14:37
- 9♃︎ Jupiter14:37 – 15:31
- 10♂︎ Mars15:31 – 16:24
- 11☉︎ Sun16:24 – 17:18
- 12♀︎ Venus17:18 – 18:11
Night
- 1☿︎ Mercury18:11 – 19:17
- 2☽︎ Moon19:17 – 20:24
- 3♄︎ Saturn20:24 – 21:30
- 4♃︎ Jupiter21:30 – 22:37
- 5♂︎ Mars22:37 – 23:43
- 6☉︎ Sun23:43 – 00:50
- 7♀︎ Venus00:50 – 01:56
- 8☿︎ Mercury01:56 – 03:03
- 9☽︎ Moon03:03 – 04:09
- 10♄︎ Saturn04:09 – 05:16
- 11♃︎ Jupiter05:16 – 06:22
- 12♂︎ Mars06:22 – 07:29
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Saturday, 20 February 2027, the Sun rises at 07:31 and sets at 18:11: the day lasts 10h 40m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:29, lasts 13h 18m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Saturn, from 07:31 to 08:24: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.