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 Tuesday, 13 July 2027: day of Mars
- Sunrise
- 05:46
- Sunset
- 20:44
- Next sunrise
- 05:46
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Rome).
Day
- 1♂︎ Mars05:46 – 07:01
- 2☉︎ Sun07:01 – 08:15
- 3♀︎ Venus08:15 – 09:30
- 4☿︎ Mercury09:30 – 10:45
- 5☽︎ Moon10:45 – 12:00
- 6♄︎ Saturn12:00 – 13:15
- 7♃︎ Jupiter13:15 – 14:30
- 8♂︎ Mars14:30 – 15:45
- 9☉︎ Sun15:45 – 17:00
- 10♀︎ Venus17:00 – 18:15
- 11☿︎ Mercury18:15 – 19:30
- 12☽︎ Moon19:30 – 20:44
Night
- 1♄︎ Saturn20:44 – 21:30
- 2♃︎ Jupiter21:30 – 22:15
- 3♂︎ Mars22:15 – 23:00
- 4☉︎ Sun23:00 – 23:45
- 5♀︎ Venus23:45 – 00:30
- 6☿︎ Mercury00:30 – 01:15
- 7☽︎ Moon01:15 – 02:01
- 8♄︎ Saturn02:01 – 02:46
- 9♃︎ Jupiter02:46 – 03:31
- 10♂︎ Mars03:31 – 04:16
- 11☉︎ Sun04:16 – 05:01
- 12♀︎ Venus05:01 – 05:46
Questions
How are the planetary hours calculated in Rome?
On Tuesday, 13 July 2027, the Sun rises at 05:46 and sets at 20:44: the day lasts 14h 59m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:46, lasts 9h 02m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Mars, from 05:46 to 07:01: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.