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 Sunday, 18 October 2026: day of the Sun
- Sunrise
- 07:25
- Sunset
- 18:24
- Next sunrise
- 07:26
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Europe/Rome).
Day
- 1☉︎ Sun07:25 – 08:20
- 2♀︎ Venus08:20 – 09:15
- 3☿︎ Mercury09:15 – 10:10
- 4☽︎ Moon10:10 – 11:05
- 5♄︎ Saturn11:05 – 11:59
- 6♃︎ Jupiter11:59 – 12:54
- 7♂︎ Mars12:54 – 13:49
- 8☉︎ Sun13:49 – 14:44
- 9♀︎ Venus14:44 – 15:39
- 10☿︎ Mercury15:39 – 16:34
- 11☽︎ Moon16:34 – 17:29
- 12♄︎ Saturn17:29 – 18:24
Night
- 1♃︎ Jupiter18:24 – 19:29
- 2♂︎ Mars19:29 – 20:34
- 3☉︎ Sun20:34 – 21:39
- 4♀︎ Venus21:39 – 22:44
- 5☿︎ Mercury22:44 – 23:50
- 6☽︎ Moon23:50 – 00:55
- 7♄︎ Saturn00:55 – 02:00
- 8♃︎ Jupiter02:00 – 03:05
- 9♂︎ Mars03:05 – 04:11
- 10☉︎ Sun04:11 – 05:16
- 11♀︎ Venus05:16 – 06:21
- 12☿︎ Mercury06:21 – 07:26
Questions
How are the planetary hours calculated in Rome?
On Sunday, 18 October 2026, the Sun rises at 07:25 and sets at 18:24: the day lasts 10h 59m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:26, lasts 13h 03m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
The Sun, from 07:25 to 08:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Venus, Mercury, the Moon, Saturn, Jupiter, Mars, then the Sun 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.