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, 9 January 2027: day of Saturn
- Sunrise
- 07:37
- Sunset
- 16:56
- Next sunrise
- 07:37
A day hour lasts 47 min; a night hour, 1h 13m. Local time (Europe/Rome).
Day
- 1♄︎ Saturn07:37 – 08:23
- 2♃︎ Jupiter08:23 – 09:10
- 3♂︎ Mars09:10 – 09:57
- 4☉︎ Sun09:57 – 10:43
- 5♀︎ Venus10:43 – 11:30
- 6☿︎ Mercury11:30 – 12:17
- 7☽︎ Moon12:17 – 13:03
- 8♄︎ Saturn13:03 – 13:50
- 9♃︎ Jupiter13:50 – 14:36
- 10♂︎ Mars14:36 – 15:23
- 11☉︎ Sun15:23 – 16:10
- 12♀︎ Venus16:10 – 16:56
Night
- 1☿︎ Mercury16:56 – 18:10
- 2☽︎ Moon18:10 – 19:23
- 3♄︎ Saturn19:23 – 20:36
- 4♃︎ Jupiter20:36 – 21:50
- 5♂︎ Mars21:50 – 23:03
- 6☉︎ Sun23:03 – 00:16
- 7♀︎ Venus00:16 – 01:30
- 8☿︎ Mercury01:30 – 02:43
- 9☽︎ Moon02:43 – 03:56
- 10♄︎ Saturn03:56 – 05:10
- 11♃︎ Jupiter05:10 – 06:23
- 12♂︎ Mars06:23 – 07:37
Questions
How are the planetary hours calculated in Rome?
On Saturday, 9 January 2027, the Sun rises at 07:37 and sets at 16:56: the day lasts 9h 20m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:37, lasts 14h 40m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Saturn, 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: 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.