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 Thursday, 3 September 2026: day of Jupiter
- Sunrise
- 06:40
- Sunset
- 19:47
- Next sunrise
- 06:41
A day hour lasts 1h 06m; a night hour, 55 min. Local time (Europe/Rome).
Day
- 1♃︎ Jupiter06:40 – 07:46
- 2♂︎ Mars07:46 – 08:51
- 3☉︎ Sun08:51 – 09:57
- 4♀︎ Venus09:57 – 11:02
- 5☿︎ Mercury11:02 – 12:08
- 6☽︎ Moon12:08 – 13:13
- 7♄︎ Saturn13:13 – 14:19
- 8♃︎ Jupiter14:19 – 15:25
- 9♂︎ Mars15:25 – 16:30
- 10☉︎ Sun16:30 – 17:36
- 11♀︎ Venus17:36 – 18:41
- 12☿︎ Mercury18:41 – 19:47
Night
- 1☽︎ Moon19:47 – 20:41
- 2♄︎ Saturn20:41 – 21:36
- 3♃︎ Jupiter21:36 – 22:30
- 4♂︎ Mars22:30 – 23:25
- 5☉︎ Sun23:25 – 00:20
- 6♀︎ Venus00:20 – 01:14
- 7☿︎ Mercury01:14 – 02:09
- 8☽︎ Moon02:09 – 03:03
- 9♄︎ Saturn03:03 – 03:58
- 10♃︎ Jupiter03:58 – 04:52
- 11♂︎ Mars04:52 – 05:47
- 12☉︎ Sun05:47 – 06:41
Questions
How are the planetary hours calculated in Florence?
On Thursday, 3 September 2026, the Sun rises at 06:40 and sets at 19:47: the day lasts 13h 07m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 06:41, lasts 10h 54m: twelve night hours of 55 min.
Which planet rules the first hour that day?
Jupiter, from 06:40 to 07:46: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.