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 Monday, 29 December 2025: day of the Moon
- Sunrise
- 07:45
- Sunset
- 16:28
- Next sunrise
- 07:45
A day hour lasts 44 min; a night hour, 1h 16m. Local time (Europe/Rome).
Day
- 1☽︎ Moon07:45 – 08:28
- 2♄︎ Saturn08:28 – 09:12
- 3♃︎ Jupiter09:12 – 09:56
- 4♂︎ Mars09:56 – 10:39
- 5☉︎ Sun10:39 – 11:23
- 6♀︎ Venus11:23 – 12:07
- 7☿︎ Mercury12:07 – 12:50
- 8☽︎ Moon12:50 – 13:34
- 9♄︎ Saturn13:34 – 14:17
- 10♃︎ Jupiter14:17 – 15:01
- 11♂︎ Mars15:01 – 15:45
- 12☉︎ Sun15:45 – 16:28
Night
- 1♀︎ Venus16:28 – 17:45
- 2☿︎ Mercury17:45 – 19:01
- 3☽︎ Moon19:01 – 20:18
- 4♄︎ Saturn20:18 – 21:34
- 5♃︎ Jupiter21:34 – 22:50
- 6♂︎ Mars22:50 – 00:07
- 7☉︎ Sun00:07 – 01:23
- 8♀︎ Venus01:23 – 02:39
- 9☿︎ Mercury02:39 – 03:56
- 10☽︎ Moon03:56 – 05:12
- 11♄︎ Saturn05:12 – 06:28
- 12♃︎ Jupiter06:28 – 07:45
Questions
How are the planetary hours calculated in Trieste?
On Monday, 29 December 2025, the Sun rises at 07:45 and sets at 16:28: the day lasts 8h 44m, that is twelve day hours of 44 min. The night, until the next sunrise at 07:45, lasts 15h 16m: twelve night hours of 1h 16m.
Which planet rules the first hour that day?
The Moon, from 07:45 to 08:28: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Saturn, Jupiter, Mars, the Sun, Venus, Mercury, then the Moon 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.