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, 13 December 2026: day of the Sun
- Sunrise
- 07:28
- Sunset
- 16:39
- Next sunrise
- 07:29
A day hour lasts 46 min; a night hour, 1h 14m. Local time (Europe/Rome).
Day
- 1☉︎ Sun07:28 – 08:14
- 2♀︎ Venus08:14 – 09:00
- 3☿︎ Mercury09:00 – 09:46
- 4☽︎ Moon09:46 – 10:32
- 5♄︎ Saturn10:32 – 11:18
- 6♃︎ Jupiter11:18 – 12:04
- 7♂︎ Mars12:04 – 12:49
- 8☉︎ Sun12:49 – 13:35
- 9♀︎ Venus13:35 – 14:21
- 10☿︎ Mercury14:21 – 15:07
- 11☽︎ Moon15:07 – 15:53
- 12♄︎ Saturn15:53 – 16:39
Night
- 1♃︎ Jupiter16:39 – 17:53
- 2♂︎ Mars17:53 – 19:07
- 3☉︎ Sun19:07 – 20:21
- 4♀︎ Venus20:21 – 21:35
- 5☿︎ Mercury21:35 – 22:50
- 6☽︎ Moon22:50 – 00:04
- 7♄︎ Saturn00:04 – 01:18
- 8♃︎ Jupiter01:18 – 02:32
- 9♂︎ Mars02:32 – 03:47
- 10☉︎ Sun03:47 – 05:01
- 11♀︎ Venus05:01 – 06:15
- 12☿︎ Mercury06:15 – 07:29
Questions
How are the planetary hours calculated in Rome?
On Sunday, 13 December 2026, the Sun rises at 07:28 and sets at 16:39: the day lasts 9h 10m, that is twelve day hours of 46 min. The night, until the next sunrise at 07:29, lasts 14h 51m: twelve night hours of 1h 14m.
Which planet rules the first hour that day?
The Sun, from 07:28 to 08:14: 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.