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Planetary hours · Bologna (Italy)

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 Thursday, 13 August 2026: day of Jupiter

Sunrise
06:14
Sunset
20:23
Next sunrise
06:16

A day hour lasts 1h 11m; a night hour, 49 min. Local time (Europe/Rome).

Day

  1. 1♃︎ Jupiter06:14 – 07:25
  2. 2♂︎ Mars07:25 – 08:36
  3. 3☉︎ Sun08:36 – 09:47
  4. 4♀︎ Venus09:47 – 10:57
  5. 5☿︎ Mercury10:57 – 12:08
  6. 6☽︎ Moon12:08 – 13:19
  7. 7♄︎ Saturn13:19 – 14:29
  8. 8♃︎ Jupiter14:29 – 15:40
  9. 9♂︎ Mars15:40 – 16:51
  10. 10☉︎ Sun16:51 – 18:01
  11. 11♀︎ Venus18:01 – 19:12
  12. 12☿︎ Mercury19:12 – 20:23

Night

  1. 1☽︎ Moon20:23 – 21:12
  2. 2♄︎ Saturn21:12 – 22:02
  3. 3♃︎ Jupiter22:02 – 22:51
  4. 4♂︎ Mars22:51 – 23:40
  5. 5☉︎ Sun23:40 – 00:30
  6. 6♀︎ Venus00:30 – 01:19
  7. 7☿︎ Mercury01:19 – 02:09
  8. 8☽︎ Moon02:09 – 02:58
  9. 9♄︎ Saturn02:58 – 03:47
  10. 10♃︎ Jupiter03:47 – 04:37
  11. 11♂︎ Mars04:37 – 05:26
  12. 12☉︎ Sun05:26 – 06:16

Other cities · Italy

Questions

How are the planetary hours calculated in Bologna?

On Thursday, 13 August 2026, the Sun rises at 06:14 and sets at 20:23: the day lasts 14h 08m, that is twelve day hours of 1h 11m. The night, until the next sunrise at 06:16, lasts 9h 53m: twelve night hours of 49 min.

Which planet rules the first hour that day?

Jupiter, from 06:14 to 07:25: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter 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.

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Calendars

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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.