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 Saturday, 13 May 2028: day of Saturn
- Sunrise
- 05:51
- Sunset
- 20:32
- Next sunrise
- 05:50
A day hour lasts 1h 13m; a night hour, 47 min. Local time (Europe/Rome).
Day
- 1♄︎ Saturn05:51 – 07:04
- 2♃︎ Jupiter07:04 – 08:18
- 3♂︎ Mars08:18 – 09:31
- 4☉︎ Sun09:31 – 10:44
- 5♀︎ Venus10:44 – 11:58
- 6☿︎ Mercury11:58 – 13:11
- 7☽︎ Moon13:11 – 14:25
- 8♄︎ Saturn14:25 – 15:38
- 9♃︎ Jupiter15:38 – 16:51
- 10♂︎ Mars16:51 – 18:05
- 11☉︎ Sun18:05 – 19:18
- 12♀︎ Venus19:18 – 20:32
Night
- 1☿︎ Mercury20:32 – 21:18
- 2☽︎ Moon21:18 – 22:05
- 3♄︎ Saturn22:05 – 22:51
- 4♃︎ Jupiter22:51 – 23:38
- 5♂︎ Mars23:38 – 00:24
- 6☉︎ Sun00:24 – 01:11
- 7♀︎ Venus01:11 – 01:57
- 8☿︎ Mercury01:57 – 02:44
- 9☽︎ Moon02:44 – 03:30
- 10♄︎ Saturn03:30 – 04:17
- 11♃︎ Jupiter04:17 – 05:03
- 12♂︎ Mars05:03 – 05:50
Questions
How are the planetary hours calculated in Florence?
On Saturday, 13 May 2028, the Sun rises at 05:51 and sets at 20:32: the day lasts 14h 41m, that is twelve day hours of 1h 13m. The night, until the next sunrise at 05:50, lasts 9h 18m: twelve night hours of 47 min.
Which planet rules the first hour that day?
Saturn, from 05:51 to 07:04: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.