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 Sunday, 4 January 2026: day of the Sun
- Sunrise
- 07:48
- Sunset
- 16:51
- Next sunrise
- 07:48
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Rome).
Day
- 1☉︎ Sun07:48 – 08:34
- 2♀︎ Venus08:34 – 09:19
- 3☿︎ Mercury09:19 – 10:04
- 4☽︎ Moon10:04 – 10:49
- 5♄︎ Saturn10:49 – 11:34
- 6♃︎ Jupiter11:34 – 12:20
- 7♂︎ Mars12:20 – 13:05
- 8☉︎ Sun13:05 – 13:50
- 9♀︎ Venus13:50 – 14:35
- 10☿︎ Mercury14:35 – 15:20
- 11☽︎ Moon15:20 – 16:05
- 12♄︎ Saturn16:05 – 16:51
Night
- 1♃︎ Jupiter16:51 – 18:05
- 2♂︎ Mars18:05 – 19:20
- 3☉︎ Sun19:20 – 20:35
- 4♀︎ Venus20:35 – 21:50
- 5☿︎ Mercury21:50 – 23:05
- 6☽︎ Moon23:05 – 00:19
- 7♄︎ Saturn00:19 – 01:34
- 8♃︎ Jupiter01:34 – 02:49
- 9♂︎ Mars02:49 – 04:04
- 10☉︎ Sun04:04 – 05:19
- 11♀︎ Venus05:19 – 06:34
- 12☿︎ Mercury06:34 – 07:48
Questions
How are the planetary hours calculated in Florence?
On Sunday, 4 January 2026, the Sun rises at 07:48 and sets at 16:51: the day lasts 9h 02m, that is twelve day hours of 45 min. The night, until the next sunrise at 07:48, lasts 14h 58m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
The Sun, from 07:48 to 08:34: 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.