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 Friday, 7 August 2026: day of Venus
- Sunrise
- 06:08
- Sunset
- 20:32
- Next sunrise
- 06:09
A day hour lasts 1h 12m; a night hour, 48 min. Local time (Europe/Rome).
Day
- 1♀︎ Venus06:08 – 07:20
- 2☿︎ Mercury07:20 – 08:32
- 3☽︎ Moon08:32 – 09:44
- 4♄︎ Saturn09:44 – 10:56
- 5♃︎ Jupiter10:56 – 12:08
- 6♂︎ Mars12:08 – 13:20
- 7☉︎ Sun13:20 – 14:32
- 8♀︎ Venus14:32 – 15:44
- 9☿︎ Mercury15:44 – 16:56
- 10☽︎ Moon16:56 – 18:08
- 11♄︎ Saturn18:08 – 19:20
- 12♃︎ Jupiter19:20 – 20:32
Night
- 1♂︎ Mars20:32 – 21:20
- 2☉︎ Sun21:20 – 22:08
- 3♀︎ Venus22:08 – 22:56
- 4☿︎ Mercury22:56 – 23:44
- 5☽︎ Moon23:44 – 00:32
- 6♄︎ Saturn00:32 – 01:20
- 7♃︎ Jupiter01:20 – 02:08
- 8♂︎ Mars02:08 – 02:56
- 9☉︎ Sun02:56 – 03:44
- 10♀︎ Venus03:44 – 04:33
- 11☿︎ Mercury04:33 – 05:21
- 12☽︎ Moon05:21 – 06:09
Questions
How are the planetary hours calculated in Bologna?
On Friday, 7 August 2026, the Sun rises at 06:08 and sets at 20:32: the day lasts 14h 24m, that is twelve day hours of 1h 12m. The night, until the next sunrise at 06:09, lasts 9h 37m: twelve night hours of 48 min.
Which planet rules the first hour that day?
Venus, from 06:08 to 07:20: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mercury, the Moon, Saturn, Jupiter, Mars, the Sun, then Venus 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.