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, 15 January 2028: day of Saturn
- Sunrise
- 08:12
- Sunset
- 17:20
- Next sunrise
- 08:12
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Paris).
Day
- 1♄︎ Saturn08:12 – 08:58
- 2♃︎ Jupiter08:58 – 09:43
- 3♂︎ Mars09:43 – 10:29
- 4☉︎ Sun10:29 – 11:15
- 5♀︎ Venus11:15 – 12:00
- 6☿︎ Mercury12:00 – 12:46
- 7☽︎ Moon12:46 – 13:32
- 8♄︎ Saturn13:32 – 14:17
- 9♃︎ Jupiter14:17 – 15:03
- 10♂︎ Mars15:03 – 15:49
- 11☉︎ Sun15:49 – 16:34
- 12♀︎ Venus16:34 – 17:20
Night
- 1☿︎ Mercury17:20 – 18:34
- 2☽︎ Moon18:34 – 19:49
- 3♄︎ Saturn19:49 – 21:03
- 4♃︎ Jupiter21:03 – 22:17
- 5♂︎ Mars22:17 – 23:31
- 6☉︎ Sun23:31 – 00:46
- 7♀︎ Venus00:46 – 02:00
- 8☿︎ Mercury02:00 – 03:14
- 9☽︎ Moon03:14 – 04:29
- 10♄︎ Saturn04:29 – 05:43
- 11♃︎ Jupiter05:43 – 06:57
- 12♂︎ Mars06:57 – 08:12
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Saturday, 15 January 2028, the Sun rises at 08:12 and sets at 17:20: the day lasts 9h 08m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:12, lasts 14h 52m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Saturn, from 08:12 to 08:58: 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.