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, 31 July 2026: day of Venus
- Sunrise
- 06:02
- Sunset
- 20:29
- Next sunrise
- 06:03
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Europe/Rome).
Day
- 1♀︎ Venus06:02 – 07:14
- 2☿︎ Mercury07:14 – 08:27
- 3☽︎ Moon08:27 – 09:39
- 4♄︎ Saturn09:39 – 10:51
- 5♃︎ Jupiter10:51 – 12:03
- 6♂︎ Mars12:03 – 13:16
- 7☉︎ Sun13:16 – 14:28
- 8♀︎ Venus14:28 – 15:40
- 9☿︎ Mercury15:40 – 16:52
- 10☽︎ Moon16:52 – 18:05
- 11♄︎ Saturn18:05 – 19:17
- 12♃︎ Jupiter19:17 – 20:29
Night
- 1♂︎ Mars20:29 – 21:17
- 2☉︎ Sun21:17 – 22:05
- 3♀︎ Venus22:05 – 22:53
- 4☿︎ Mercury22:53 – 23:40
- 5☽︎ Moon23:40 – 00:28
- 6♄︎ Saturn00:28 – 01:16
- 7♃︎ Jupiter01:16 – 02:04
- 8♂︎ Mars02:04 – 02:52
- 9☉︎ Sun02:52 – 03:40
- 10♀︎ Venus03:40 – 04:27
- 11☿︎ Mercury04:27 – 05:15
- 12☽︎ Moon05:15 – 06:03
Questions
How are the planetary hours calculated in Rome?
On Friday, 31 July 2026, the Sun rises at 06:02 and sets at 20:29: the day lasts 14h 27m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 06:03, lasts 9h 34m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Venus, from 06:02 to 07:14: 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.