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, 15 November 2026: day of the Sun
- Sunrise
- 07:10
- Sunset
- 16:47
- Next sunrise
- 07:12
A day hour lasts 48 min; a night hour, 1h 12m. Local time (Europe/Rome).
Day
- 1☉︎ Sun07:10 – 07:58
- 2♀︎ Venus07:58 – 08:46
- 3☿︎ Mercury08:46 – 09:34
- 4☽︎ Moon09:34 – 10:22
- 5♄︎ Saturn10:22 – 11:10
- 6♃︎ Jupiter11:10 – 11:58
- 7♂︎ Mars11:58 – 12:47
- 8☉︎ Sun12:47 – 13:35
- 9♀︎ Venus13:35 – 14:23
- 10☿︎ Mercury14:23 – 15:11
- 11☽︎ Moon15:11 – 15:59
- 12♄︎ Saturn15:59 – 16:47
Night
- 1♃︎ Jupiter16:47 – 17:59
- 2♂︎ Mars17:59 – 19:11
- 3☉︎ Sun19:11 – 20:23
- 4♀︎ Venus20:23 – 21:35
- 5☿︎ Mercury21:35 – 22:47
- 6☽︎ Moon22:47 – 23:59
- 7♄︎ Saturn23:59 – 01:11
- 8♃︎ Jupiter01:11 – 02:23
- 9♂︎ Mars02:23 – 03:35
- 10☉︎ Sun03:35 – 04:47
- 11♀︎ Venus04:47 – 05:59
- 12☿︎ Mercury05:59 – 07:12
Questions
How are the planetary hours calculated in Bologna?
On Sunday, 15 November 2026, the Sun rises at 07:10 and sets at 16:47: the day lasts 9h 37m, that is twelve day hours of 48 min. The night, until the next sunrise at 07:12, lasts 14h 25m: twelve night hours of 1h 12m.
Which planet rules the first hour that day?
The Sun, from 07:10 to 07:58: 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.