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, 1 June 2026: day of the Moon
- Sunrise
- 05:33
- Sunset
- 20:52
- Next sunrise
- 05:32
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Rome).
Day
- 1☽︎ Moon05:33 – 06:49
- 2♄︎ Saturn06:49 – 08:06
- 3♃︎ Jupiter08:06 – 09:22
- 4♂︎ Mars09:22 – 10:39
- 5☉︎ Sun10:39 – 11:56
- 6♀︎ Venus11:56 – 13:12
- 7☿︎ Mercury13:12 – 14:29
- 8☽︎ Moon14:29 – 15:45
- 9♄︎ Saturn15:45 – 17:02
- 10♃︎ Jupiter17:02 – 18:19
- 11♂︎ Mars18:19 – 19:35
- 12☉︎ Sun19:35 – 20:52
Night
- 1♀︎ Venus20:52 – 21:35
- 2☿︎ Mercury21:35 – 22:18
- 3☽︎ Moon22:18 – 23:02
- 4♄︎ Saturn23:02 – 23:45
- 5♃︎ Jupiter23:45 – 00:29
- 6♂︎ Mars00:29 – 01:12
- 7☉︎ Sun01:12 – 01:55
- 8♀︎ Venus01:55 – 02:39
- 9☿︎ Mercury02:39 – 03:22
- 10☽︎ Moon03:22 – 04:05
- 11♄︎ Saturn04:05 – 04:49
- 12♃︎ Jupiter04:49 – 05:32
Questions
How are the planetary hours calculated in Bologna?
On Monday, 1 June 2026, the Sun rises at 05:33 and sets at 20:52: the day lasts 15h 19m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:32, lasts 8h 40m: twelve night hours of 43 min.
Which planet rules the first hour that day?
The Moon, from 05:33 to 06:49: 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.