Planetary hours
in Naples.
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 Thursday, 17 December 2026: day of Jupiter
- Sunrise
- 07:21
- Sunset
- 16:36
- Next sunrise
- 07:22
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Rome).
Day
- 1♃︎ Jupiter07:21 – 08:07
- 2♂︎ Mars08:07 – 08:53
- 3☉︎ Sun08:53 – 09:40
- 4♀︎ Venus09:40 – 10:26
- 5☿︎ Mercury10:26 – 11:12
- 6☽︎ Moon11:12 – 11:58
- 7♄︎ Saturn11:58 – 12:45
- 8♃︎ Jupiter12:45 – 13:31
- 9♂︎ Mars13:31 – 14:17
- 10☉︎ Sun14:17 – 15:03
- 11♀︎ Venus15:03 – 15:50
- 12☿︎ Mercury15:50 – 16:36
Night
- 1☽︎ Moon16:36 – 17:50
- 2♄︎ Saturn17:50 – 19:04
- 3♃︎ Jupiter19:04 – 20:17
- 4♂︎ Mars20:17 – 21:31
- 5☉︎ Sun21:31 – 22:45
- 6♀︎ Venus22:45 – 23:59
- 7☿︎ Mercury23:59 – 01:13
- 8☽︎ Moon01:13 – 02:26
- 9♄︎ Saturn02:26 – 03:40
- 10♃︎ Jupiter03:40 – 04:54
- 11♂︎ Mars04:54 – 06:08
- 12☉︎ Sun06:08 – 07:22
Questions
How are the planetary hours calculated in Naples?
On Thursday, 17 December 2026, the Sun rises at 07:21 and sets at 16:36: the day lasts 9h 15m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:22, lasts 14h 46m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Jupiter, from 07:21 to 08:07: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.