Planetary hours
in Trieste.
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, 16 October 2025: day of Jupiter
- Sunrise
- 07:22
- Sunset
- 18:17
- Next sunrise
- 07:24
A day hour lasts 55 min; a night hour, 1h 06m. Local time (Europe/Rome).
Day
- 1♃︎ Jupiter07:22 – 08:17
- 2♂︎ Mars08:17 – 09:11
- 3☉︎ Sun09:11 – 10:06
- 4♀︎ Venus10:06 – 11:00
- 5☿︎ Mercury11:00 – 11:55
- 6☽︎ Moon11:55 – 12:50
- 7♄︎ Saturn12:50 – 13:44
- 8♃︎ Jupiter13:44 – 14:39
- 9♂︎ Mars14:39 – 15:33
- 10☉︎ Sun15:33 – 16:28
- 11♀︎ Venus16:28 – 17:22
- 12☿︎ Mercury17:22 – 18:17
Night
- 1☽︎ Moon18:17 – 19:22
- 2♄︎ Saturn19:22 – 20:28
- 3♃︎ Jupiter20:28 – 21:34
- 4♂︎ Mars21:34 – 22:39
- 5☉︎ Sun22:39 – 23:45
- 6♀︎ Venus23:45 – 00:50
- 7☿︎ Mercury00:50 – 01:56
- 8☽︎ Moon01:56 – 03:01
- 9♄︎ Saturn03:01 – 04:07
- 10♃︎ Jupiter04:07 – 05:12
- 11♂︎ Mars05:12 – 06:18
- 12☉︎ Sun06:18 – 07:24
Questions
How are the planetary hours calculated in Trieste?
On Thursday, 16 October 2025, the Sun rises at 07:22 and sets at 18:17: the day lasts 10h 55m, that is twelve day hours of 55 min. The night, until the next sunrise at 07:24, lasts 13h 07m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Jupiter, from 07:22 to 08:17: 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.
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.