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 Tuesday, 8 September 2026: day of Mars
- Sunrise
- 06:42
- Sunset
- 19:31
- Next sunrise
- 06:43
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Europe/Rome).
Day
- 1♂︎ Mars06:42 – 07:46
- 2☉︎ Sun07:46 – 08:50
- 3♀︎ Venus08:50 – 09:54
- 4☿︎ Mercury09:54 – 10:59
- 5☽︎ Moon10:59 – 12:03
- 6♄︎ Saturn12:03 – 13:07
- 7♃︎ Jupiter13:07 – 14:11
- 8♂︎ Mars14:11 – 15:15
- 9☉︎ Sun15:15 – 16:19
- 10♀︎ Venus16:19 – 17:23
- 11☿︎ Mercury17:23 – 18:27
- 12☽︎ Moon18:27 – 19:31
Night
- 1♄︎ Saturn19:31 – 20:27
- 2♃︎ Jupiter20:27 – 21:23
- 3♂︎ Mars21:23 – 22:19
- 4☉︎ Sun22:19 – 23:15
- 5♀︎ Venus23:15 – 00:11
- 6☿︎ Mercury00:11 – 01:07
- 7☽︎ Moon01:07 – 02:03
- 8♄︎ Saturn02:03 – 02:59
- 9♃︎ Jupiter02:59 – 03:55
- 10♂︎ Mars03:55 – 04:51
- 11☉︎ Sun04:51 – 05:47
- 12♀︎ Venus05:47 – 06:43
Questions
How are the planetary hours calculated in Rome?
On Tuesday, 8 September 2026, the Sun rises at 06:42 and sets at 19:31: the day lasts 12h 49m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:43, lasts 11h 12m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Mars, from 06:42 to 07:46: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.