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 Wednesday, 23 December 2026: day of Mercury
- Sunrise
- 07:43
- Sunset
- 16:24
- Next sunrise
- 07:43
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Rome).
Day
- 1☿︎ Mercury07:43 – 08:26
- 2☽︎ Moon08:26 – 09:10
- 3♄︎ Saturn09:10 – 09:53
- 4♃︎ Jupiter09:53 – 10:37
- 5♂︎ Mars10:37 – 11:20
- 6☉︎ Sun11:20 – 12:03
- 7♀︎ Venus12:03 – 12:47
- 8☿︎ Mercury12:47 – 13:30
- 9☽︎ Moon13:30 – 14:14
- 10♄︎ Saturn14:14 – 14:57
- 11♃︎ Jupiter14:57 – 15:41
- 12♂︎ Mars15:41 – 16:24
Night
- 1☉︎ Sun16:24 – 17:41
- 2♀︎ Venus17:41 – 18:57
- 3☿︎ Mercury18:57 – 20:14
- 4☽︎ Moon20:14 – 21:30
- 5♄︎ Saturn21:30 – 22:47
- 6♃︎ Jupiter22:47 – 00:04
- 7♂︎ Mars00:04 – 01:20
- 8☉︎ Sun01:20 – 02:37
- 9♀︎ Venus02:37 – 03:53
- 10☿︎ Mercury03:53 – 05:10
- 11☽︎ Moon05:10 – 06:27
- 12♄︎ Saturn06:27 – 07:43
Questions
How are the planetary hours calculated in Trieste?
On Wednesday, 23 December 2026, the Sun rises at 07:43 and sets at 16:24: the day lasts 8h 41m, that is twelve day hours of 43 min. The night, until the next sunrise at 07:43, lasts 15h 19m: twelve night hours of 1h 17m.
Which planet rules the first hour that day?
Mercury, from 07:43 to 08:26: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury 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.