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 Thursday, 31 December 2026: day of Jupiter
- Sunrise
- 07:37
- Sunset
- 16:48
- Next sunrise
- 07:37
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Rome).
Day
- 1♃︎ Jupiter07:37 – 08:23
- 2♂︎ Mars08:23 – 09:09
- 3☉︎ Sun09:09 – 09:55
- 4♀︎ Venus09:55 – 10:41
- 5☿︎ Mercury10:41 – 11:27
- 6☽︎ Moon11:27 – 12:12
- 7♄︎ Saturn12:12 – 12:58
- 8♃︎ Jupiter12:58 – 13:44
- 9♂︎ Mars13:44 – 14:30
- 10☉︎ Sun14:30 – 15:16
- 11♀︎ Venus15:16 – 16:02
- 12☿︎ Mercury16:02 – 16:48
Night
- 1☽︎ Moon16:48 – 18:02
- 2♄︎ Saturn18:02 – 19:16
- 3♃︎ Jupiter19:16 – 20:30
- 4♂︎ Mars20:30 – 21:44
- 5☉︎ Sun21:44 – 22:58
- 6♀︎ Venus22:58 – 00:13
- 7☿︎ Mercury00:13 – 01:27
- 8☽︎ Moon01:27 – 02:41
- 9♄︎ Saturn02:41 – 03:55
- 10♃︎ Jupiter03:55 – 05:09
- 11♂︎ Mars05:09 – 06:23
- 12☉︎ Sun06:23 – 07:37
Questions
How are the planetary hours calculated in Rome?
On Thursday, 31 December 2026, the Sun rises at 07:37 and sets at 16:48: the day lasts 9h 11m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:37, lasts 14h 49m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Jupiter, from 07:37 to 08:23: 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.