Planetary hours
in Rome.
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 Saturday, 17 October 2026: day of Saturn
- Sunrise
- 07:24
- Sunset
- 18:25
- Next sunrise
- 07:25
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Europe/Rome).
Day
- 1♄︎ Saturn07:24 – 08:19
- 2♃︎ Jupiter08:19 – 09:14
- 3♂︎ Mars09:14 – 10:09
- 4☉︎ Sun10:09 – 11:04
- 5♀︎ Venus11:04 – 11:59
- 6☿︎ Mercury11:59 – 12:54
- 7☽︎ Moon12:54 – 13:50
- 8♄︎ Saturn13:50 – 14:45
- 9♃︎ Jupiter14:45 – 15:40
- 10♂︎ Mars15:40 – 16:35
- 11☉︎ Sun16:35 – 17:30
- 12♀︎ Venus17:30 – 18:25
Night
- 1☿︎ Mercury18:25 – 19:30
- 2☽︎ Moon19:30 – 20:35
- 3♄︎ Saturn20:35 – 21:40
- 4♃︎ Jupiter21:40 – 22:45
- 5♂︎ Mars22:45 – 23:50
- 6☉︎ Sun23:50 – 00:55
- 7♀︎ Venus00:55 – 02:00
- 8☿︎ Mercury02:00 – 03:05
- 9☽︎ Moon03:05 – 04:10
- 10♄︎ Saturn04:10 – 05:15
- 11♃︎ Jupiter05:15 – 06:20
- 12♂︎ Mars06:20 – 07:25
Questions
How are the planetary hours calculated in Rome?
On Saturday, 17 October 2026, the Sun rises at 07:24 and sets at 18:25: the day lasts 11h 01m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:25, lasts 13h 00m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Saturn, from 07:24 to 08:19: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.