Planetary hours
in Florence.
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 Monday, 22 December 2025: day of the Moon
- Sunrise
- 07:46
- Sunset
- 16:41
- Next sunrise
- 07:46
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Rome).
Day
- 1☽︎ Moon07:46 – 08:30
- 2♄︎ Saturn08:30 – 09:15
- 3♃︎ Jupiter09:15 – 09:59
- 4♂︎ Mars09:59 – 10:44
- 5☉︎ Sun10:44 – 11:29
- 6♀︎ Venus11:29 – 12:13
- 7☿︎ Mercury12:13 – 12:58
- 8☽︎ Moon12:58 – 13:42
- 9♄︎ Saturn13:42 – 14:27
- 10♃︎ Jupiter14:27 – 15:11
- 11♂︎ Mars15:11 – 15:56
- 12☉︎ Sun15:56 – 16:41
Night
- 1♀︎ Venus16:41 – 17:56
- 2☿︎ Mercury17:56 – 19:12
- 3☽︎ Moon19:12 – 20:27
- 4♄︎ Saturn20:27 – 21:42
- 5♃︎ Jupiter21:42 – 22:58
- 6♂︎ Mars22:58 – 00:13
- 7☉︎ Sun00:13 – 01:29
- 8♀︎ Venus01:29 – 02:44
- 9☿︎ Mercury02:44 – 04:00
- 10☽︎ Moon04:00 – 05:15
- 11♄︎ Saturn05:15 – 06:31
- 12♃︎ Jupiter06:31 – 07:46
Questions
How are the planetary hours calculated in Florence?
On Monday, 22 December 2025, the Sun rises at 07:46 and sets at 16:41: the day lasts 8h 55m, that is twelve day hours of 45 min. The night, until the next sunrise at 07:46, lasts 15h 06m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
The Moon, from 07:46 to 08:30: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.