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 Saturday, 15 August 2026: day of Saturn
- Sunrise
- 06:17
- Sunset
- 20:10
- Next sunrise
- 06:18
A day hour lasts 1h 09m; a night hour, 51 min. Local time (Europe/Rome).
Day
- 1♄︎ Saturn06:17 – 07:27
- 2♃︎ Jupiter07:27 – 08:36
- 3♂︎ Mars08:36 – 09:45
- 4☉︎ Sun09:45 – 10:55
- 5♀︎ Venus10:55 – 12:04
- 6☿︎ Mercury12:04 – 13:14
- 7☽︎ Moon13:14 – 14:23
- 8♄︎ Saturn14:23 – 15:32
- 9♃︎ Jupiter15:32 – 16:42
- 10♂︎ Mars16:42 – 17:51
- 11☉︎ Sun17:51 – 19:00
- 12♀︎ Venus19:00 – 20:10
Night
- 1☿︎ Mercury20:10 – 21:01
- 2☽︎ Moon21:01 – 21:51
- 3♄︎ Saturn21:51 – 22:42
- 4♃︎ Jupiter22:42 – 23:33
- 5♂︎ Mars23:33 – 00:23
- 6☉︎ Sun00:23 – 01:14
- 7♀︎ Venus01:14 – 02:05
- 8☿︎ Mercury02:05 – 02:56
- 9☽︎ Moon02:56 – 03:46
- 10♄︎ Saturn03:46 – 04:37
- 11♃︎ Jupiter04:37 – 05:28
- 12♂︎ Mars05:28 – 06:18
Questions
How are the planetary hours calculated in Rome?
On Saturday, 15 August 2026, the Sun rises at 06:17 and sets at 20:10: the day lasts 13h 52m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:18, lasts 10h 09m: twelve night hours of 51 min.
Which planet rules the first hour that day?
Saturn, from 06:17 to 07:27: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.