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, 21 July 2026: day of Mars
- Sunrise
- 05:52
- Sunset
- 20:50
- Next sunrise
- 05:53
A day hour lasts 1h 15m; a night hour, 45 min. Local time (Europe/Rome).
Day
- 1♂︎ Mars05:52 – 07:07
- 2☉︎ Sun07:07 – 08:21
- 3♀︎ Venus08:21 – 09:36
- 4☿︎ Mercury09:36 – 10:51
- 5☽︎ Moon10:51 – 12:06
- 6♄︎ Saturn12:06 – 13:21
- 7♃︎ Jupiter13:21 – 14:35
- 8♂︎ Mars14:35 – 15:50
- 9☉︎ Sun15:50 – 17:05
- 10♀︎ Venus17:05 – 18:20
- 11☿︎ Mercury18:20 – 19:35
- 12☽︎ Moon19:35 – 20:50
Night
- 1♄︎ Saturn20:50 – 21:35
- 2♃︎ Jupiter21:35 – 22:20
- 3♂︎ Mars22:20 – 23:05
- 4☉︎ Sun23:05 – 23:51
- 5♀︎ Venus23:51 – 00:36
- 6☿︎ Mercury00:36 – 01:21
- 7☽︎ Moon01:21 – 02:06
- 8♄︎ Saturn02:06 – 02:52
- 9♃︎ Jupiter02:52 – 03:37
- 10♂︎ Mars03:37 – 04:22
- 11☉︎ Sun04:22 – 05:07
- 12♀︎ Venus05:07 – 05:53
Questions
How are the planetary hours calculated in Florence?
On Tuesday, 21 July 2026, the Sun rises at 05:52 and sets at 20:50: the day lasts 14h 58m, that is twelve day hours of 1h 15m. The night, until the next sunrise at 05:53, lasts 9h 03m: twelve night hours of 45 min.
Which planet rules the first hour that day?
Mars, from 05:52 to 07:07: 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.