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, 15 September 2026: day of Mars
- Sunrise
- 06:49
- Sunset
- 19:19
- Next sunrise
- 06:50
A day hour lasts 1h 02m; a night hour, 58 min. Local time (Europe/Rome).
Day
- 1♂︎ Mars06:49 – 07:52
- 2☉︎ Sun07:52 – 08:54
- 3♀︎ Venus08:54 – 09:57
- 4☿︎ Mercury09:57 – 10:59
- 5☽︎ Moon10:59 – 12:02
- 6♄︎ Saturn12:02 – 13:04
- 7♃︎ Jupiter13:04 – 14:07
- 8♂︎ Mars14:07 – 15:09
- 9☉︎ Sun15:09 – 16:12
- 10♀︎ Venus16:12 – 17:14
- 11☿︎ Mercury17:14 – 18:17
- 12☽︎ Moon18:17 – 19:19
Night
- 1♄︎ Saturn19:19 – 20:17
- 2♃︎ Jupiter20:17 – 21:14
- 3♂︎ Mars21:14 – 22:12
- 4☉︎ Sun22:12 – 23:10
- 5♀︎ Venus23:10 – 00:07
- 6☿︎ Mercury00:07 – 01:05
- 7☽︎ Moon01:05 – 02:02
- 8♄︎ Saturn02:02 – 03:00
- 9♃︎ Jupiter03:00 – 03:58
- 10♂︎ Mars03:58 – 04:55
- 11☉︎ Sun04:55 – 05:53
- 12♀︎ Venus05:53 – 06:50
Questions
How are the planetary hours calculated in Rome?
On Tuesday, 15 September 2026, the Sun rises at 06:49 and sets at 19:19: the day lasts 12h 30m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 06:50, lasts 11h 31m: twelve night hours of 58 min.
Which planet rules the first hour that day?
Mars, from 06:49 to 07:52: 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.