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, 19 January 2027: day of Mars
- Sunrise
- 08:10
- Sunset
- 17:25
- Next sunrise
- 08:09
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:10 – 08:56
- 2☉︎ Sun08:56 – 09:42
- 3♀︎ Venus09:42 – 10:29
- 4☿︎ Mercury10:29 – 11:15
- 5☽︎ Moon11:15 – 12:01
- 6♄︎ Saturn12:01 – 12:47
- 7♃︎ Jupiter12:47 – 13:34
- 8♂︎ Mars13:34 – 14:20
- 9☉︎ Sun14:20 – 15:06
- 10♀︎ Venus15:06 – 15:53
- 11☿︎ Mercury15:53 – 16:39
- 12☽︎ Moon16:39 – 17:25
Night
- 1♄︎ Saturn17:25 – 18:39
- 2♃︎ Jupiter18:39 – 19:53
- 3♂︎ Mars19:53 – 21:06
- 4☉︎ Sun21:06 – 22:20
- 5♀︎ Venus22:20 – 23:34
- 6☿︎ Mercury23:34 – 00:47
- 7☽︎ Moon00:47 – 02:01
- 8♄︎ Saturn02:01 – 03:14
- 9♃︎ Jupiter03:14 – 04:28
- 10♂︎ Mars04:28 – 05:42
- 11☉︎ Sun05:42 – 06:55
- 12♀︎ Venus06:55 – 08:09
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Tuesday, 19 January 2027, the Sun rises at 08:10 and sets at 17:25: the day lasts 9h 16m, that is twelve day hours of 46 min. The night, until the next sunrise at 08:09, lasts 14h 43m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Mars, from 08:10 to 08:56: 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.