Planetary hours
in Bologna.
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, 3 April 2027: day of Saturn
- Sunrise
- 06:52
- Sunset
- 19:44
- Next sunrise
- 06:50
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Europe/Rome).
Day
- 1♄︎ Saturn06:52 – 07:57
- 2♃︎ Jupiter07:57 – 09:01
- 3♂︎ Mars09:01 – 10:05
- 4☉︎ Sun10:05 – 11:09
- 5♀︎ Venus11:09 – 12:14
- 6☿︎ Mercury12:14 – 13:18
- 7☽︎ Moon13:18 – 14:22
- 8♄︎ Saturn14:22 – 15:26
- 9♃︎ Jupiter15:26 – 16:31
- 10♂︎ Mars16:31 – 17:35
- 11☉︎ Sun17:35 – 18:39
- 12♀︎ Venus18:39 – 19:44
Night
- 1☿︎ Mercury19:44 – 20:39
- 2☽︎ Moon20:39 – 21:35
- 3♄︎ Saturn21:35 – 22:30
- 4♃︎ Jupiter22:30 – 23:26
- 5♂︎ Mars23:26 – 00:21
- 6☉︎ Sun00:21 – 01:17
- 7♀︎ Venus01:17 – 02:13
- 8☿︎ Mercury02:13 – 03:08
- 9☽︎ Moon03:08 – 04:04
- 10♄︎ Saturn04:04 – 04:59
- 11♃︎ Jupiter04:59 – 05:55
- 12♂︎ Mars05:55 – 06:50
Questions
How are the planetary hours calculated in Bologna?
On Saturday, 3 April 2027, the Sun rises at 06:52 and sets at 19:44: the day lasts 12h 51m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:50, lasts 11h 07m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Saturn, from 06:52 to 07:57: 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.