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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 Friday, 21 August 2026: day of Venus

Sunrise
06:24
Sunset
20:10
Next sunrise
06:25

A day hour lasts 1h 09m; a night hour, 51 min. Local time (Europe/Rome).

Day

  1. 1♀︎ Venus06:24 – 07:33
  2. 2☿︎ Mercury07:33 – 08:41
  3. 3☽︎ Moon08:41 – 09:50
  4. 4♄︎ Saturn09:50 – 10:59
  5. 5♃︎ Jupiter10:59 – 12:08
  6. 6♂︎ Mars12:08 – 13:17
  7. 7☉︎ Sun13:17 – 14:26
  8. 8♀︎ Venus14:26 – 15:35
  9. 9☿︎ Mercury15:35 – 16:43
  10. 10☽︎ Moon16:43 – 17:52
  11. 11♄︎ Saturn17:52 – 19:01
  12. 12♃︎ Jupiter19:01 – 20:10

Night

  1. 1♂︎ Mars20:10 – 21:01
  2. 2☉︎ Sun21:01 – 21:52
  3. 3♀︎ Venus21:52 – 22:44
  4. 4☿︎ Mercury22:44 – 23:35
  5. 5☽︎ Moon23:35 – 00:26
  6. 6♄︎ Saturn00:26 – 01:17
  7. 7♃︎ Jupiter01:17 – 02:09
  8. 8♂︎ Mars02:09 – 03:00
  9. 9☉︎ Sun03:00 – 03:51
  10. 10♀︎ Venus03:51 – 04:42
  11. 11☿︎ Mercury04:42 – 05:34
  12. 12☽︎ Moon05:34 – 06:25

Questions

How are the planetary hours calculated in Bologna?

On Friday, 21 August 2026, the Sun rises at 06:24 and sets at 20:10: the day lasts 13h 46m, that is twelve day hours of 1h 09m. The night, until the next sunrise at 06:25, lasts 10h 15m: twelve night hours of 51 min.

Which planet rules the first hour that day?

Venus, from 06:24 to 07:33: 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.

My sky on my chart

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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.