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 Wednesday, 14 October 2026: day of Mercury
- Sunrise
- 07:51
- Sunset
- 18:54
- Next sunrise
- 07:52
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Europe/Paris).
Day
- 1☿︎ Mercury07:51 – 08:46
- 2☽︎ Moon08:46 – 09:41
- 3♄︎ Saturn09:41 – 10:37
- 4♃︎ Jupiter10:37 – 11:32
- 5♂︎ Mars11:32 – 12:27
- 6☉︎ Sun12:27 – 13:22
- 7♀︎ Venus13:22 – 14:18
- 8☿︎ Mercury14:18 – 15:13
- 9☽︎ Moon15:13 – 16:08
- 10♄︎ Saturn16:08 – 17:03
- 11♃︎ Jupiter17:03 – 17:58
- 12♂︎ Mars17:58 – 18:54
Night
- 1☉︎ Sun18:54 – 19:58
- 2♀︎ Venus19:58 – 21:03
- 3☿︎ Mercury21:03 – 22:08
- 4☽︎ Moon22:08 – 23:13
- 5♄︎ Saturn23:13 – 00:18
- 6♃︎ Jupiter00:18 – 01:23
- 7♂︎ Mars01:23 – 02:28
- 8☉︎ Sun02:28 – 03:33
- 9♀︎ Venus03:33 – 04:38
- 10☿︎ Mercury04:38 – 05:43
- 11☽︎ Moon05:43 – 06:47
- 12♄︎ Saturn06:47 – 07:52
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Wednesday, 14 October 2026, the Sun rises at 07:51 and sets at 18:54: the day lasts 11h 02m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:52, lasts 12h 59m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Mercury, from 07:51 to 08:46: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.