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, 20 October 2026: day of Mars
- Sunrise
- 07:35
- Sunset
- 18:23
- Next sunrise
- 07:36
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Europe/Rome).
Day
- 1♂︎ Mars07:35 – 08:29
- 2☉︎ Sun08:29 – 09:23
- 3♀︎ Venus09:23 – 10:17
- 4☿︎ Mercury10:17 – 11:11
- 5☽︎ Moon11:11 – 12:05
- 6♄︎ Saturn12:05 – 12:59
- 7♃︎ Jupiter12:59 – 13:53
- 8♂︎ Mars13:53 – 14:47
- 9☉︎ Sun14:47 – 15:41
- 10♀︎ Venus15:41 – 16:35
- 11☿︎ Mercury16:35 – 17:29
- 12☽︎ Moon17:29 – 18:23
Night
- 1♄︎ Saturn18:23 – 19:29
- 2♃︎ Jupiter19:29 – 20:35
- 3♂︎ Mars20:35 – 21:41
- 4☉︎ Sun21:41 – 22:47
- 5♀︎ Venus22:47 – 23:54
- 6☿︎ Mercury23:54 – 01:00
- 7☽︎ Moon01:00 – 02:06
- 8♄︎ Saturn02:06 – 03:12
- 9♃︎ Jupiter03:12 – 04:18
- 10♂︎ Mars04:18 – 05:24
- 11☉︎ Sun05:24 – 06:30
- 12♀︎ Venus06:30 – 07:36
Questions
How are the planetary hours calculated in Florence?
On Tuesday, 20 October 2026, the Sun rises at 07:35 and sets at 18:23: the day lasts 10h 48m, that is twelve day hours of 54 min. The night, until the next sunrise at 07:36, lasts 13h 13m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Mars, from 07:35 to 08:29: 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.