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 Tuesday, 18 August 2026: day of Mars
- Sunrise
- 06:15
- Sunset
- 19:57
- Next sunrise
- 06:16
A day hour lasts 1h 08m; a night hour, 52 min. Local time (Europe/Rome).
Day
- 1♂︎ Mars06:15 – 07:24
- 2☉︎ Sun07:24 – 08:32
- 3♀︎ Venus08:32 – 09:41
- 4☿︎ Mercury09:41 – 10:49
- 5☽︎ Moon10:49 – 11:57
- 6♄︎ Saturn11:57 – 13:06
- 7♃︎ Jupiter13:06 – 14:14
- 8♂︎ Mars14:14 – 15:23
- 9☉︎ Sun15:23 – 16:31
- 10♀︎ Venus16:31 – 17:40
- 11☿︎ Mercury17:40 – 18:48
- 12☽︎ Moon18:48 – 19:57
Night
- 1♄︎ Saturn19:57 – 20:48
- 2♃︎ Jupiter20:48 – 21:40
- 3♂︎ Mars21:40 – 22:32
- 4☉︎ Sun22:32 – 23:23
- 5♀︎ Venus23:23 – 00:15
- 6☿︎ Mercury00:15 – 01:06
- 7☽︎ Moon01:06 – 01:58
- 8♄︎ Saturn01:58 – 02:50
- 9♃︎ Jupiter02:50 – 03:41
- 10♂︎ Mars03:41 – 04:33
- 11☉︎ Sun04:33 – 05:25
- 12♀︎ Venus05:25 – 06:16
Questions
How are the planetary hours calculated in Naples?
On Tuesday, 18 August 2026, the Sun rises at 06:15 and sets at 19:57: the day lasts 13h 41m, that is twelve day hours of 1h 08m. The night, until the next sunrise at 06:16, lasts 10h 20m: twelve night hours of 52 min.
Which planet rules the first hour that day?
Mars, from 06:15 to 07:24: 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.