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, 13 January 2027: day of Mercury
- Sunrise
- 07:36
- Sunset
- 17:01
- Next sunrise
- 07:35
A day hour lasts 47 min; a night hour, 1h 13m. Local time (Europe/Rome).
Day
- 1☿︎ Mercury07:36 – 08:23
- 2☽︎ Moon08:23 – 09:10
- 3♄︎ Saturn09:10 – 09:57
- 4♃︎ Jupiter09:57 – 10:44
- 5♂︎ Mars10:44 – 11:31
- 6☉︎ Sun11:31 – 12:18
- 7♀︎ Venus12:18 – 13:05
- 8☿︎ Mercury13:05 – 13:52
- 9☽︎ Moon13:52 – 14:39
- 10♄︎ Saturn14:39 – 15:27
- 11♃︎ Jupiter15:27 – 16:14
- 12♂︎ Mars16:14 – 17:01
Night
- 1☉︎ Sun17:01 – 18:14
- 2♀︎ Venus18:14 – 19:27
- 3☿︎ Mercury19:27 – 20:39
- 4☽︎ Moon20:39 – 21:52
- 5♄︎ Saturn21:52 – 23:05
- 6♃︎ Jupiter23:05 – 00:18
- 7♂︎ Mars00:18 – 01:31
- 8☉︎ Sun01:31 – 02:44
- 9♀︎ Venus02:44 – 03:57
- 10☿︎ Mercury03:57 – 05:09
- 11☽︎ Moon05:09 – 06:22
- 12♄︎ Saturn06:22 – 07:35
Questions
How are the planetary hours calculated in Rome?
On Wednesday, 13 January 2027, the Sun rises at 07:36 and sets at 17:01: the day lasts 9h 25m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:35, lasts 14h 34m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mercury, from 07:36 to 08:23: 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.