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 Wednesday, 21 January 2026: day of Mercury
- Sunrise
- 07:22
- Sunset
- 17:06
- Next sunrise
- 07:21
A day hour lasts 49 min; a night hour, 1h 11m. Local time (Europe/Rome).
Day
- 1☿︎ Mercury07:22 – 08:10
- 2☽︎ Moon08:10 – 08:59
- 3♄︎ Saturn08:59 – 09:48
- 4♃︎ Jupiter09:48 – 10:36
- 5♂︎ Mars10:36 – 11:25
- 6☉︎ Sun11:25 – 12:14
- 7♀︎ Venus12:14 – 13:03
- 8☿︎ Mercury13:03 – 13:51
- 9☽︎ Moon13:51 – 14:40
- 10♄︎ Saturn14:40 – 15:29
- 11♃︎ Jupiter15:29 – 16:17
- 12♂︎ Mars16:17 – 17:06
Night
- 1☉︎ Sun17:06 – 18:17
- 2♀︎ Venus18:17 – 19:29
- 3☿︎ Mercury19:29 – 20:40
- 4☽︎ Moon20:40 – 21:51
- 5♄︎ Saturn21:51 – 23:02
- 6♃︎ Jupiter23:02 – 00:14
- 7♂︎ Mars00:14 – 01:25
- 8☉︎ Sun01:25 – 02:36
- 9♀︎ Venus02:36 – 03:47
- 10☿︎ Mercury03:47 – 04:59
- 11☽︎ Moon04:59 – 06:10
- 12♄︎ Saturn06:10 – 07:21
Questions
How are the planetary hours calculated in Naples?
On Wednesday, 21 January 2026, the Sun rises at 07:22 and sets at 17:06: the day lasts 9h 45m, that is twelve day hours of 49 min. The night, until the next sunrise at 07:21, lasts 14h 15m: twelve night hours of 1h 11m.
Which planet rules the first hour that day?
Mercury, from 07:22 to 08:10: 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.