Planetary hours
in Nantes.
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 Sunday, 17 January 2027: day of the Sun
- Sunrise
- 08:47
- Sunset
- 17:45
- Next sunrise
- 08:46
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Paris).
Day
- 1☉︎ Sun08:47 – 09:32
- 2♀︎ Venus09:32 – 10:16
- 3☿︎ Mercury10:16 – 11:01
- 4☽︎ Moon11:01 – 11:46
- 5♄︎ Saturn11:46 – 12:31
- 6♃︎ Jupiter12:31 – 13:16
- 7♂︎ Mars13:16 – 14:01
- 8☉︎ Sun14:01 – 14:46
- 9♀︎ Venus14:46 – 15:31
- 10☿︎ Mercury15:31 – 16:15
- 11☽︎ Moon16:15 – 17:00
- 12♄︎ Saturn17:00 – 17:45
Night
- 1♃︎ Jupiter17:45 – 19:00
- 2♂︎ Mars19:00 – 20:15
- 3☉︎ Sun20:15 – 21:30
- 4♀︎ Venus21:30 – 22:45
- 5☿︎ Mercury22:45 – 00:00
- 6☽︎ Moon00:00 – 01:16
- 7♄︎ Saturn01:16 – 02:31
- 8♃︎ Jupiter02:31 – 03:46
- 9♂︎ Mars03:46 – 05:01
- 10☉︎ Sun05:01 – 06:16
- 11♀︎ Venus06:16 – 07:31
- 12☿︎ Mercury07:31 – 08:46
Other cities · France
Questions
How are the planetary hours calculated in Nantes?
On Sunday, 17 January 2027, the Sun rises at 08:47 and sets at 17:45: the day lasts 8h 58m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:46, lasts 15h 01m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
The Sun, from 08:47 to 09:32: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.