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, 13 September 2026: day of the Sun
- Sunrise
- 06:51
- Sunset
- 19:29
- Next sunrise
- 06:52
A day hour lasts 1h 03m; a night hour, 57 min. Local time (Europe/Rome).
Day
- 1☉︎ Sun06:51 – 07:54
- 2♀︎ Venus07:54 – 08:58
- 3☿︎ Mercury08:58 – 10:01
- 4☽︎ Moon10:01 – 11:04
- 5♄︎ Saturn11:04 – 12:07
- 6♃︎ Jupiter12:07 – 13:10
- 7♂︎ Mars13:10 – 14:13
- 8☉︎ Sun14:13 – 15:16
- 9♀︎ Venus15:16 – 16:19
- 10☿︎ Mercury16:19 – 17:23
- 11☽︎ Moon17:23 – 18:26
- 12♄︎ Saturn18:26 – 19:29
Night
- 1♃︎ Jupiter19:29 – 20:26
- 2♂︎ Mars20:26 – 21:23
- 3☉︎ Sun21:23 – 22:20
- 4♀︎ Venus22:20 – 23:17
- 5☿︎ Mercury23:17 – 00:14
- 6☽︎ Moon00:14 – 01:11
- 7♄︎ Saturn01:11 – 02:08
- 8♃︎ Jupiter02:08 – 03:05
- 9♂︎ Mars03:05 – 04:02
- 10☉︎ Sun04:02 – 04:58
- 11♀︎ Venus04:58 – 05:55
- 12☿︎ Mercury05:55 – 06:52
Questions
How are the planetary hours calculated in Florence?
On Sunday, 13 September 2026, the Sun rises at 06:51 and sets at 19:29: the day lasts 12h 37m, that is twelve day hours of 1h 03m. The night, until the next sunrise at 06:52, lasts 11h 24m: twelve night hours of 57 min.
Which planet rules the first hour that day?
The Sun, from 06:51 to 07:54: 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.