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 Tuesday, 6 October 2026: day of Mars
- Sunrise
- 07:41
- Sunset
- 19:08
- Next sunrise
- 07:42
A day hour lasts 57 min; a night hour, 1h 03m. Local time (Europe/Paris).
Day
- 1♂︎ Mars07:41 – 08:38
- 2☉︎ Sun08:38 – 09:35
- 3♀︎ Venus09:35 – 10:33
- 4☿︎ Mercury10:33 – 11:30
- 5☽︎ Moon11:30 – 12:27
- 6♄︎ Saturn12:27 – 13:24
- 7♃︎ Jupiter13:24 – 14:22
- 8♂︎ Mars14:22 – 15:19
- 9☉︎ Sun15:19 – 16:16
- 10♀︎ Venus16:16 – 17:13
- 11☿︎ Mercury17:13 – 18:11
- 12☽︎ Moon18:11 – 19:08
Night
- 1♄︎ Saturn19:08 – 20:11
- 2♃︎ Jupiter20:11 – 21:14
- 3♂︎ Mars21:14 – 22:17
- 4☉︎ Sun22:17 – 23:19
- 5♀︎ Venus23:19 – 00:22
- 6☿︎ Mercury00:22 – 01:25
- 7☽︎ Moon01:25 – 02:28
- 8♄︎ Saturn02:28 – 03:31
- 9♃︎ Jupiter03:31 – 04:34
- 10♂︎ Mars04:34 – 05:36
- 11☉︎ Sun05:36 – 06:39
- 12♀︎ Venus06:39 – 07:42
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Tuesday, 6 October 2026, the Sun rises at 07:41 and sets at 19:08: the day lasts 11h 27m, that is twelve day hours of 57 min. The night, until the next sunrise at 07:42, lasts 12h 34m: twelve night hours of 1h 03m.
Which planet rules the first hour that day?
Mars, from 07:41 to 08:38: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.