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 Wednesday, 18 November 2026: day of Mercury
- Sunrise
- 07:14
- Sunset
- 16:44
- Next sunrise
- 07:15
A day hour lasts 47 min; a night hour, 1h 13m. Local time (Europe/Rome).
Day
- 1☿︎ Mercury07:14 – 08:02
- 2☽︎ Moon08:02 – 08:49
- 3♄︎ Saturn08:49 – 09:37
- 4♃︎ Jupiter09:37 – 10:24
- 5♂︎ Mars10:24 – 11:12
- 6☉︎ Sun11:12 – 11:59
- 7♀︎ Venus11:59 – 12:47
- 8☿︎ Mercury12:47 – 13:34
- 9☽︎ Moon13:34 – 14:22
- 10♄︎ Saturn14:22 – 15:09
- 11♃︎ Jupiter15:09 – 15:56
- 12♂︎ Mars15:56 – 16:44
Night
- 1☉︎ Sun16:44 – 17:57
- 2♀︎ Venus17:57 – 19:09
- 3☿︎ Mercury19:09 – 20:22
- 4☽︎ Moon20:22 – 21:34
- 5♄︎ Saturn21:34 – 22:47
- 6♃︎ Jupiter22:47 – 00:00
- 7♂︎ Mars00:00 – 01:12
- 8☉︎ Sun01:12 – 02:25
- 9♀︎ Venus02:25 – 03:38
- 10☿︎ Mercury03:38 – 04:50
- 11☽︎ Moon04:50 – 06:03
- 12♄︎ Saturn06:03 – 07:15
Questions
How are the planetary hours calculated in Bologna?
On Wednesday, 18 November 2026, the Sun rises at 07:14 and sets at 16:44: the day lasts 9h 30m, that is twelve day hours of 47 min. The night, until the next sunrise at 07:15, lasts 14h 31m: twelve night hours of 1h 13m.
Which planet rules the first hour that day?
Mercury, from 07:14 to 08:02: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.