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, 23 October 2026: day of Venus
- Sunrise
- 08:03
- Sunset
- 18:38
- Next sunrise
- 08:04
A day hour lasts 53 min; a night hour, 1h 07m. Local time (Europe/Paris).
Day
- 1♀︎ Venus08:03 – 08:56
- 2☿︎ Mercury08:56 – 09:49
- 3☽︎ Moon09:49 – 10:42
- 4♄︎ Saturn10:42 – 11:35
- 5♃︎ Jupiter11:35 – 12:28
- 6♂︎ Mars12:28 – 13:21
- 7☉︎ Sun13:21 – 14:14
- 8♀︎ Venus14:14 – 15:07
- 9☿︎ Mercury15:07 – 15:59
- 10☽︎ Moon15:59 – 16:52
- 11♄︎ Saturn16:52 – 17:45
- 12♃︎ Jupiter17:45 – 18:38
Night
- 1♂︎ Mars18:38 – 19:45
- 2☉︎ Sun19:45 – 20:53
- 3♀︎ Venus20:53 – 22:00
- 4☿︎ Mercury22:00 – 23:07
- 5☽︎ Moon23:07 – 00:14
- 6♄︎ Saturn00:14 – 01:21
- 7♃︎ Jupiter01:21 – 02:28
- 8♂︎ Mars02:28 – 03:36
- 9☉︎ Sun03:36 – 04:43
- 10♀︎ Venus04:43 – 05:50
- 11☿︎ Mercury05:50 – 06:57
- 12☽︎ Moon06:57 – 08:04
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Friday, 23 October 2026, the Sun rises at 08:03 and sets at 18:38: the day lasts 10h 35m, that is twelve day hours of 53 min. The night, until the next sunrise at 08:04, lasts 13h 26m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Venus, from 08:03 to 08:56: 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.