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 Sunday, 26 March 2028: day of the Sun
- Sunrise
- 07:06
- Sunset
- 19:35
- Next sunrise
- 07:04
A day hour lasts 1h 02m; a night hour, 57 min. Local time (Europe/Rome).
Day
- 1☉︎ Sun07:06 – 08:08
- 2♀︎ Venus08:08 – 09:10
- 3☿︎ Mercury09:10 – 10:13
- 4☽︎ Moon10:13 – 11:15
- 5♄︎ Saturn11:15 – 12:18
- 6♃︎ Jupiter12:18 – 13:20
- 7♂︎ Mars13:20 – 14:22
- 8☉︎ Sun14:22 – 15:25
- 9♀︎ Venus15:25 – 16:27
- 10☿︎ Mercury16:27 – 17:30
- 11☽︎ Moon17:30 – 18:32
- 12♄︎ Saturn18:32 – 19:35
Night
- 1♃︎ Jupiter19:35 – 20:32
- 2♂︎ Mars20:32 – 21:29
- 3☉︎ Sun21:29 – 22:27
- 4♀︎ Venus22:27 – 23:24
- 5☿︎ Mercury23:24 – 00:22
- 6☽︎ Moon00:22 – 01:19
- 7♄︎ Saturn01:19 – 02:17
- 8♃︎ Jupiter02:17 – 03:14
- 9♂︎ Mars03:14 – 04:11
- 10☉︎ Sun04:11 – 05:09
- 11♀︎ Venus05:09 – 06:06
- 12☿︎ Mercury06:06 – 07:04
Questions
How are the planetary hours calculated in Bologna?
On Sunday, 26 March 2028, the Sun rises at 07:06 and sets at 19:35: the day lasts 12h 29m, that is twelve day hours of 1h 02m. The night, until the next sunrise at 07:04, lasts 11h 29m: twelve night hours of 57 min.
Which planet rules the first hour that day?
The Sun, from 07:06 to 08:08: 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.