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 Wednesday, 29 September 2027: day of Mercury
- Sunrise
- 07:04
- Sunset
- 18:55
- Next sunrise
- 07:05
A day hour lasts 59 min; a night hour, 1h 01m. Local time (Europe/Rome).
Day
- 1☿︎ Mercury07:04 – 08:03
- 2☽︎ Moon08:03 – 09:02
- 3♄︎ Saturn09:02 – 10:02
- 4♃︎ Jupiter10:02 – 11:01
- 5♂︎ Mars11:01 – 12:00
- 6☉︎ Sun12:00 – 13:00
- 7♀︎ Venus13:00 – 13:59
- 8☿︎ Mercury13:59 – 14:58
- 9☽︎ Moon14:58 – 15:57
- 10♄︎ Saturn15:57 – 16:57
- 11♃︎ Jupiter16:57 – 17:56
- 12♂︎ Mars17:56 – 18:55
Night
- 1☉︎ Sun18:55 – 19:56
- 2♀︎ Venus19:56 – 20:57
- 3☿︎ Mercury20:57 – 21:58
- 4☽︎ Moon21:58 – 22:58
- 5♄︎ Saturn22:58 – 23:59
- 6♃︎ Jupiter23:59 – 01:00
- 7♂︎ Mars01:00 – 02:01
- 8☉︎ Sun02:01 – 03:02
- 9♀︎ Venus03:02 – 04:02
- 10☿︎ Mercury04:02 – 05:03
- 11☽︎ Moon05:03 – 06:04
- 12♄︎ Saturn06:04 – 07:05
Questions
How are the planetary hours calculated in Rome?
On Wednesday, 29 September 2027, the Sun rises at 07:04 and sets at 18:55: the day lasts 11h 51m, that is twelve day hours of 59 min. The night, until the next sunrise at 07:05, lasts 12h 10m: twelve night hours of 1h 01m.
Which planet rules the first hour that day?
Mercury, from 07:04 to 08:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.