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 Monday, 27 July 2026: day of the Moon
- Sunrise
- 05:55
- Sunset
- 20:45
- Next sunrise
- 05:56
A day hour lasts 1h 14m; a night hour, 46 min. Local time (Europe/Rome).
Day
- 1☽︎ Moon05:55 – 07:10
- 2♄︎ Saturn07:10 – 08:24
- 3♃︎ Jupiter08:24 – 09:38
- 4♂︎ Mars09:38 – 10:52
- 5☉︎ Sun10:52 – 12:06
- 6♀︎ Venus12:06 – 13:20
- 7☿︎ Mercury13:20 – 14:35
- 8☽︎ Moon14:35 – 15:49
- 9♄︎ Saturn15:49 – 17:03
- 10♃︎ Jupiter17:03 – 18:17
- 11♂︎ Mars18:17 – 19:31
- 12☉︎ Sun19:31 – 20:45
Night
- 1♀︎ Venus20:45 – 21:31
- 2☿︎ Mercury21:31 – 22:17
- 3☽︎ Moon22:17 – 23:03
- 4♄︎ Saturn23:03 – 23:49
- 5♃︎ Jupiter23:49 – 00:35
- 6♂︎ Mars00:35 – 01:21
- 7☉︎ Sun01:21 – 02:07
- 8♀︎ Venus02:07 – 02:53
- 9☿︎ Mercury02:53 – 03:39
- 10☽︎ Moon03:39 – 04:25
- 11♄︎ Saturn04:25 – 05:10
- 12♃︎ Jupiter05:10 – 05:56
Questions
How are the planetary hours calculated in Bologna?
On Monday, 27 July 2026, the Sun rises at 05:55 and sets at 20:45: the day lasts 14h 50m, that is twelve day hours of 1h 14m. The night, until the next sunrise at 05:56, lasts 9h 11m: twelve night hours of 46 min.
Which planet rules the first hour that day?
The Moon, from 05:55 to 07:10: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.