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 Friday, 15 May 2026: day of Venus
- Sunrise
- 05:49
- Sunset
- 20:33
- Next sunrise
- 05:48
A day hour lasts 1h 14m; a night hour, 46 min. Local time (Europe/Rome).
Day
- 1♀︎ Venus05:49 – 07:03
- 2☿︎ Mercury07:03 – 08:17
- 3☽︎ Moon08:17 – 09:30
- 4♄︎ Saturn09:30 – 10:44
- 5♃︎ Jupiter10:44 – 11:58
- 6♂︎ Mars11:58 – 13:11
- 7☉︎ Sun13:11 – 14:25
- 8♀︎ Venus14:25 – 15:39
- 9☿︎ Mercury15:39 – 16:52
- 10☽︎ Moon16:52 – 18:06
- 11♄︎ Saturn18:06 – 19:19
- 12♃︎ Jupiter19:19 – 20:33
Night
- 1♂︎ Mars20:33 – 21:19
- 2☉︎ Sun21:19 – 22:06
- 3♀︎ Venus22:06 – 22:52
- 4☿︎ Mercury22:52 – 23:38
- 5☽︎ Moon23:38 – 00:24
- 6♄︎ Saturn00:24 – 01:11
- 7♃︎ Jupiter01:11 – 01:57
- 8♂︎ Mars01:57 – 02:43
- 9☉︎ Sun02:43 – 03:29
- 10♀︎ Venus03:29 – 04:16
- 11☿︎ Mercury04:16 – 05:02
- 12☽︎ Moon05:02 – 05:48
Questions
How are the planetary hours calculated in Florence?
On Friday, 15 May 2026, the Sun rises at 05:49 and sets at 20:33: the day lasts 14h 44m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:48, lasts 9h 15m: twelve night hours of 46 min.
Which planet rules the first hour that day?
Venus, from 05:49 to 07:03: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.