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, 11 September 2026: day of Venus
- Sunrise
- 06:45
- Sunset
- 19:26
- Next sunrise
- 06:46
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Europe/Rome).
Day
- 1♀︎ Venus06:45 – 07:49
- 2☿︎ Mercury07:49 – 08:52
- 3☽︎ Moon08:52 – 09:56
- 4♄︎ Saturn09:56 – 10:59
- 5♃︎ Jupiter10:59 – 12:02
- 6♂︎ Mars12:02 – 13:06
- 7☉︎ Sun13:06 – 14:09
- 8♀︎ Venus14:09 – 15:13
- 9☿︎ Mercury15:13 – 16:16
- 10☽︎ Moon16:16 – 17:19
- 11♄︎ Saturn17:19 – 18:23
- 12♃︎ Jupiter18:23 – 19:26
Night
- 1♂︎ Mars19:26 – 20:23
- 2☉︎ Sun20:23 – 21:20
- 3♀︎ Venus21:20 – 22:16
- 4☿︎ Mercury22:16 – 23:13
- 5☽︎ Moon23:13 – 00:10
- 6♄︎ Saturn00:10 – 01:06
- 7♃︎ Jupiter01:06 – 02:03
- 8♂︎ Mars02:03 – 03:00
- 9☉︎ Sun03:00 – 03:56
- 10♀︎ Venus03:56 – 04:53
- 11☿︎ Mercury04:53 – 05:50
- 12☽︎ Moon05:50 – 06:46
Questions
How are the planetary hours calculated in Rome?
On Friday, 11 September 2026, the Sun rises at 06:45 and sets at 19:26: the day lasts 12h 41m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 06:46, lasts 11h 20m: twelve night hours of 57 min.
Which planet rules the first hour that day?
Venus, from 06:45 to 07:49: 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.