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, 27 May 2026: day of Mercury
- Sunrise
- 05:56
- Sunset
- 21:12
- Next sunrise
- 05:55
A day hour lasts 1h 16m; a night hour, 44 min. Local time (Europe/Paris).
Day
- 1☿︎ Mercury05:56 – 07:12
- 2☽︎ Moon07:12 – 08:29
- 3♄︎ Saturn08:29 – 09:45
- 4♃︎ Jupiter09:45 – 11:01
- 5♂︎ Mars11:01 – 12:18
- 6☉︎ Sun12:18 – 13:34
- 7♀︎ Venus13:34 – 14:50
- 8☿︎ Mercury14:50 – 16:07
- 9☽︎ Moon16:07 – 17:23
- 10♄︎ Saturn17:23 – 18:40
- 11♃︎ Jupiter18:40 – 19:56
- 12♂︎ Mars19:56 – 21:12
Night
- 1☉︎ Sun21:12 – 21:56
- 2♀︎ Venus21:56 – 22:39
- 3☿︎ Mercury22:39 – 23:23
- 4☽︎ Moon23:23 – 00:07
- 5♄︎ Saturn00:07 – 00:50
- 6♃︎ Jupiter00:50 – 01:34
- 7♂︎ Mars01:34 – 02:17
- 8☉︎ Sun02:17 – 03:01
- 9♀︎ Venus03:01 – 03:44
- 10☿︎ Mercury03:44 – 04:28
- 11☽︎ Moon04:28 – 05:12
- 12♄︎ Saturn05:12 – 05:55
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Wednesday, 27 May 2026, the Sun rises at 05:56 and sets at 21:12: the day lasts 15h 16m, that is twelve day hours of 1h 16m. The night, until the next sunrise at 05:55, lasts 8h 43m: twelve night hours of 44 min.
Which planet rules the first hour that day?
Mercury, from 05:56 to 07:12: 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.