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 Friday, 4 December 2026: day of Venus
- 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♀︎ Venus07:20 – 08:07
- 2☿︎ Mercury08:07 – 08:53
- 3☽︎ Moon08:53 – 09:40
- 4♄︎ Saturn09:40 – 10:26
- 5♃︎ Jupiter10:26 – 11:13
- 6♂︎ Mars11:13 – 12:00
- 7☉︎ Sun12:00 – 12:46
- 8♀︎ Venus12:46 – 13:33
- 9☿︎ Mercury13:33 – 14:19
- 10☽︎ Moon14:19 – 15:06
- 11♄︎ Saturn15:06 – 15:52
- 12♃︎ Jupiter15:52 – 16:39
Night
- 1♂︎ Mars16:39 – 17:52
- 2☉︎ Sun17:52 – 19:06
- 3♀︎ Venus19:06 – 20:19
- 4☿︎ Mercury20:19 – 21:33
- 5☽︎ Moon21:33 – 22:46
- 6♄︎ Saturn22:46 – 00:00
- 7♃︎ Jupiter00:00 – 01:14
- 8♂︎ Mars01:14 – 02:27
- 9☉︎ Sun02:27 – 03:41
- 10♀︎ Venus03:41 – 04:54
- 11☿︎ Mercury04:54 – 06:08
- 12☽︎ Moon06:08 – 07:21
Questions
How are the planetary hours calculated in Rome?
On Friday, 4 December 2026, 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?
Venus, 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: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.