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, 2 April 2027: day of Venus
- Sunrise
- 06:54
- Sunset
- 19:42
- Next sunrise
- 06:52
A day hour lasts 1h 04m; a night hour, 56 min. Local time (Europe/Rome).
Day
- 1♀︎ Venus06:54 – 07:58
- 2☿︎ Mercury07:58 – 09:02
- 3☽︎ Moon09:02 – 10:06
- 4♄︎ Saturn10:06 – 11:10
- 5♃︎ Jupiter11:10 – 12:14
- 6♂︎ Mars12:14 – 13:18
- 7☉︎ Sun13:18 – 14:22
- 8♀︎ Venus14:22 – 15:26
- 9☿︎ Mercury15:26 – 16:30
- 10☽︎ Moon16:30 – 17:34
- 11♄︎ Saturn17:34 – 18:38
- 12♃︎ Jupiter18:38 – 19:42
Night
- 1♂︎ Mars19:42 – 20:38
- 2☉︎ Sun20:38 – 21:34
- 3♀︎ Venus21:34 – 22:30
- 4☿︎ Mercury22:30 – 23:26
- 5☽︎ Moon23:26 – 00:21
- 6♄︎ Saturn00:21 – 01:17
- 7♃︎ Jupiter01:17 – 02:13
- 8♂︎ Mars02:13 – 03:09
- 9☉︎ Sun03:09 – 04:05
- 10♀︎ Venus04:05 – 05:01
- 11☿︎ Mercury05:01 – 05:56
- 12☽︎ Moon05:56 – 06:52
Questions
How are the planetary hours calculated in Bologna?
On Friday, 2 April 2027, the Sun rises at 06:54 and sets at 19:42: the day lasts 12h 48m, that is twelve day hours of 1h 04m. The night, until the next sunrise at 06:52, lasts 11h 10m: twelve night hours of 56 min.
Which planet rules the first hour that day?
Venus, from 06:54 to 07:58: 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.