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, 4 September 2026: day of Venus
- Sunrise
- 07:02
- Sunset
- 20:09
- Next sunrise
- 07:03
A day hour lasts 1h 06m; a night hour, 55 min. Local time (Europe/Paris).
Day
- 1♀︎ Venus07:02 – 08:07
- 2☿︎ Mercury08:07 – 09:13
- 3☽︎ Moon09:13 – 10:19
- 4♄︎ Saturn10:19 – 11:24
- 5♃︎ Jupiter11:24 – 12:30
- 6♂︎ Mars12:30 – 13:35
- 7☉︎ Sun13:35 – 14:41
- 8♀︎ Venus14:41 – 15:46
- 9☿︎ Mercury15:46 – 16:52
- 10☽︎ Moon16:52 – 17:58
- 11♄︎ Saturn17:58 – 19:03
- 12♃︎ Jupiter19:03 – 20:09
Night
- 1♂︎ Mars20:09 – 21:03
- 2☉︎ Sun21:03 – 21:58
- 3♀︎ Venus21:58 – 22:52
- 4☿︎ Mercury22:52 – 23:47
- 5☽︎ Moon23:47 – 00:41
- 6♄︎ Saturn00:41 – 01:36
- 7♃︎ Jupiter01:36 – 02:30
- 8♂︎ Mars02:30 – 03:25
- 9☉︎ Sun03:25 – 04:19
- 10♀︎ Venus04:19 – 05:14
- 11☿︎ Mercury05:14 – 06:09
- 12☽︎ Moon06:09 – 07:03
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Friday, 4 September 2026, the Sun rises at 07:02 and sets at 20:09: the day lasts 13h 07m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 07:03, lasts 10h 54m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Venus, from 07:02 to 08:07: 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.