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, 14 October 2026: day of Mercury
- Sunrise
- 07:28
- Sunset
- 18:32
- Next sunrise
- 07:29
A day hour lasts 55 min; a night hour, 1h 05m. Local time (Europe/Rome).
Day
- 1☿︎ Mercury07:28 – 08:23
- 2☽︎ Moon08:23 – 09:18
- 3♄︎ Saturn09:18 – 10:14
- 4♃︎ Jupiter10:14 – 11:09
- 5♂︎ Mars11:09 – 12:04
- 6☉︎ Sun12:04 – 13:00
- 7♀︎ Venus13:00 – 13:55
- 8☿︎ Mercury13:55 – 14:50
- 9☽︎ Moon14:50 – 15:46
- 10♄︎ Saturn15:46 – 16:41
- 11♃︎ Jupiter16:41 – 17:36
- 12♂︎ Mars17:36 – 18:32
Night
- 1☉︎ Sun18:32 – 19:37
- 2♀︎ Venus19:37 – 20:41
- 3☿︎ Mercury20:41 – 21:46
- 4☽︎ Moon21:46 – 22:51
- 5♄︎ Saturn22:51 – 23:56
- 6♃︎ Jupiter23:56 – 01:00
- 7♂︎ Mars01:00 – 02:05
- 8☉︎ Sun02:05 – 03:10
- 9♀︎ Venus03:10 – 04:15
- 10☿︎ Mercury04:15 – 05:20
- 11☽︎ Moon05:20 – 06:24
- 12♄︎ Saturn06:24 – 07:29
Questions
How are the planetary hours calculated in Bologna?
On Wednesday, 14 October 2026, the Sun rises at 07:28 and sets at 18:32: the day lasts 11h 04m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:29, lasts 12h 57m: twelve night hours of 1h 05m.
Which planet rules the first hour that day?
Mercury, from 07:28 to 08:23: 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.