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 Tuesday, 1 September 2026: day of Mars
- Sunrise
- 06:38
- Sunset
- 19:50
- Next sunrise
- 06:39
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/Rome).
Day
- 1♂︎ Mars06:38 – 07:44
- 2☉︎ Sun07:44 – 08:50
- 3♀︎ Venus08:50 – 09:56
- 4☿︎ Mercury09:56 – 11:02
- 5☽︎ Moon11:02 – 12:08
- 6♄︎ Saturn12:08 – 13:14
- 7♃︎ Jupiter13:14 – 14:20
- 8♂︎ Mars14:20 – 15:26
- 9☉︎ Sun15:26 – 16:32
- 10♀︎ Venus16:32 – 17:38
- 11☿︎ Mercury17:38 – 18:44
- 12☽︎ Moon18:44 – 19:50
Night
- 1♄︎ Saturn19:50 – 20:44
- 2♃︎ Jupiter20:44 – 21:38
- 3♂︎ Mars21:38 – 22:33
- 4☉︎ Sun22:33 – 23:27
- 5♀︎ Venus23:27 – 00:21
- 6☿︎ Mercury00:21 – 01:15
- 7☽︎ Moon01:15 – 02:09
- 8♄︎ Saturn02:09 – 03:03
- 9♃︎ Jupiter03:03 – 03:57
- 10♂︎ Mars03:57 – 04:51
- 11☉︎ Sun04:51 – 05:45
- 12♀︎ Venus05:45 – 06:39
Questions
How are the planetary hours calculated in Florence?
On Tuesday, 1 September 2026, the Sun rises at 06:38 and sets at 19:50: the day lasts 13h 13m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 06:39, lasts 10h 49m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Mars, from 06:38 to 07:44: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.