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, 12 December 2027: day of the Sun
- Sunrise
- 07:39
- Sunset
- 16:37
- Next sunrise
- 07:40
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Rome).
Day
- 1☉︎ Sun07:39 – 08:24
- 2♀︎ Venus08:24 – 09:09
- 3☿︎ Mercury09:09 – 09:53
- 4☽︎ Moon09:53 – 10:38
- 5♄︎ Saturn10:38 – 11:23
- 6♃︎ Jupiter11:23 – 12:08
- 7♂︎ Mars12:08 – 12:53
- 8☉︎ Sun12:53 – 13:38
- 9♀︎ Venus13:38 – 14:23
- 10☿︎ Mercury14:23 – 15:07
- 11☽︎ Moon15:07 – 15:52
- 12♄︎ Saturn15:52 – 16:37
Night
- 1♃︎ Jupiter16:37 – 17:52
- 2♂︎ Mars17:52 – 19:08
- 3☉︎ Sun19:08 – 20:23
- 4♀︎ Venus20:23 – 21:38
- 5☿︎ Mercury21:38 – 22:53
- 6☽︎ Moon22:53 – 00:08
- 7♄︎ Saturn00:08 – 01:24
- 8♃︎ Jupiter01:24 – 02:39
- 9♂︎ Mars02:39 – 03:54
- 10☉︎ Sun03:54 – 05:09
- 11♀︎ Venus05:09 – 06:24
- 12☿︎ Mercury06:24 – 07:40
Questions
How are the planetary hours calculated in Florence?
On Sunday, 12 December 2027, the Sun rises at 07:39 and sets at 16:37: the day lasts 8h 58m, that is twelve day hours of 45 min. The night, until the next sunrise at 07:40, lasts 15h 02m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
The Sun, from 07:39 to 08:24: 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.