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 Monday, 4 January 2027: day of the Moon
- Sunrise
- 07:37
- Sunset
- 16:51
- Next sunrise
- 07:37
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Rome).
Day
- 1☽︎ Moon07:37 – 08:23
- 2♄︎ Saturn08:23 – 09:10
- 3♃︎ Jupiter09:10 – 09:56
- 4♂︎ Mars09:56 – 10:42
- 5☉︎ Sun10:42 – 11:28
- 6♀︎ Venus11:28 – 12:14
- 7☿︎ Mercury12:14 – 13:01
- 8☽︎ Moon13:01 – 13:47
- 9♄︎ Saturn13:47 – 14:33
- 10♃︎ Jupiter14:33 – 15:19
- 11♂︎ Mars15:19 – 16:05
- 12☉︎ Sun16:05 – 16:51
Night
- 1♀︎ Venus16:51 – 18:05
- 2☿︎ Mercury18:05 – 19:19
- 3☽︎ Moon19:19 – 20:33
- 4♄︎ Saturn20:33 – 21:47
- 5♃︎ Jupiter21:47 – 23:01
- 6♂︎ Mars23:01 – 00:14
- 7☉︎ Sun00:14 – 01:28
- 8♀︎ Venus01:28 – 02:42
- 9☿︎ Mercury02:42 – 03:56
- 10☽︎ Moon03:56 – 05:10
- 11♄︎ Saturn05:10 – 06:23
- 12♃︎ Jupiter06:23 – 07:37
Questions
How are the planetary hours calculated in Rome?
On Monday, 4 January 2027, the Sun rises at 07:37 and sets at 16:51: the day lasts 9h 14m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:37, lasts 14h 46m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
The Moon, 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: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.