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, 4 December 2027: day of Saturn
- Sunrise
- 07:20
- Sunset
- 16:39
- Next sunrise
- 07:21
A day hour lasts 47 min; a night hour, 1h 14m. Local time (Europe/Rome).
Day
- 1♄︎ Saturn07:20 – 08:07
- 2♃︎ Jupiter08:07 – 08:53
- 3♂︎ Mars08:53 – 09:40
- 4☉︎ Sun09:40 – 10:26
- 5♀︎ Venus10:26 – 11:13
- 6☿︎ Mercury11:13 – 11:59
- 7☽︎ Moon11:59 – 12:46
- 8♄︎ Saturn12:46 – 13:32
- 9♃︎ Jupiter13:32 – 14:19
- 10♂︎ Mars14:19 – 15:06
- 11☉︎ Sun15:06 – 15:52
- 12♀︎ Venus15:52 – 16:39
Night
- 1☿︎ Mercury16:39 – 17:52
- 2☽︎ Moon17:52 – 19:06
- 3♄︎ Saturn19:06 – 20:19
- 4♃︎ Jupiter20:19 – 21:33
- 5♂︎ Mars21:33 – 22:46
- 6☉︎ Sun22:46 – 00:00
- 7♀︎ Venus00:00 – 01:13
- 8☿︎ Mercury01:13 – 02:27
- 9☽︎ Moon02:27 – 03:41
- 10♄︎ Saturn03:41 – 04:54
- 11♃︎ Jupiter04:54 – 06:08
- 12♂︎ Mars06:08 – 07:21
Questions
How are the planetary hours calculated in Rome?
On Saturday, 4 December 2027, the Sun rises at 07:20 and sets at 16:39: the day lasts 9h 18m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:21, lasts 14h 43m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
Saturn, from 07:20 to 08:07: 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.