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, 5 January 2027: day of Mars
- Sunrise
- 08:15
- Sunset
- 17:09
- Next sunrise
- 08:15
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Paris).
Day
- 1♂︎ Mars08:15 – 09:00
- 2☉︎ Sun09:00 – 09:44
- 3♀︎ Venus09:44 – 10:29
- 4☿︎ Mercury10:29 – 11:13
- 5☽︎ Moon11:13 – 11:58
- 6♄︎ Saturn11:58 – 12:42
- 7♃︎ Jupiter12:42 – 13:26
- 8♂︎ Mars13:26 – 14:11
- 9☉︎ Sun14:11 – 14:55
- 10♀︎ Venus14:55 – 15:40
- 11☿︎ Mercury15:40 – 16:24
- 12☽︎ Moon16:24 – 17:09
Night
- 1♄︎ Saturn17:09 – 18:24
- 2♃︎ Jupiter18:24 – 19:40
- 3♂︎ Mars19:40 – 20:55
- 4☉︎ Sun20:55 – 22:11
- 5♀︎ Venus22:11 – 23:26
- 6☿︎ Mercury23:26 – 00:42
- 7☽︎ Moon00:42 – 01:58
- 8♄︎ Saturn01:58 – 03:13
- 9♃︎ Jupiter03:13 – 04:29
- 10♂︎ Mars04:29 – 05:44
- 11☉︎ Sun05:44 – 07:00
- 12♀︎ Venus07:00 – 08:15
Other cities · France
Questions
How are the planetary hours calculated in Grenoble?
On Tuesday, 5 January 2027, the Sun rises at 08:15 and sets at 17:09: the day lasts 8h 53m, that is twelve day hours of 44 min. The night, until the next sunrise at 08:15, lasts 15h 07m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
Mars, from 08:15 to 09:00: 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.