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 Thursday, 10 September 2026: day of Jupiter
- Sunrise
- 06:44
- Sunset
- 19:28
- Next sunrise
- 06:45
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Europe/Rome).
Day
- 1♃︎ Jupiter06:44 – 07:48
- 2♂︎ Mars07:48 – 08:52
- 3☉︎ Sun08:52 – 09:55
- 4♀︎ Venus09:55 – 10:59
- 5☿︎ Mercury10:59 – 12:02
- 6☽︎ Moon12:02 – 13:06
- 7♄︎ Saturn13:06 – 14:10
- 8♃︎ Jupiter14:10 – 15:13
- 9♂︎ Mars15:13 – 16:17
- 10☉︎ Sun16:17 – 17:21
- 11♀︎ Venus17:21 – 18:24
- 12☿︎ Mercury18:24 – 19:28
Night
- 1☽︎ Moon19:28 – 20:24
- 2♄︎ Saturn20:24 – 21:21
- 3♃︎ Jupiter21:21 – 22:17
- 4♂︎ Mars22:17 – 23:14
- 5☉︎ Sun23:14 – 00:10
- 6♀︎ Venus00:10 – 01:07
- 7☿︎ Mercury01:07 – 02:03
- 8☽︎ Moon02:03 – 02:59
- 9♄︎ Saturn02:59 – 03:56
- 10♃︎ Jupiter03:56 – 04:52
- 11♂︎ Mars04:52 – 05:49
- 12☉︎ Sun05:49 – 06:45
Questions
How are the planetary hours calculated in Rome?
On Thursday, 10 September 2026, the Sun rises at 06:44 and sets at 19:28: the day lasts 12h 44m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:45, lasts 11h 17m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Jupiter, from 06:44 to 07:48: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.