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, 3 September 2026: day of Jupiter
- Sunrise
- 06:28
- Sunset
- 19:39
- Next sunrise
- 06:29
A day hour lasts 1h 06m; a night hour, 54 min. Local time (Europe/Rome).
Day
- 1♃︎ Jupiter06:28 – 07:34
- 2♂︎ Mars07:34 – 08:40
- 3☉︎ Sun08:40 – 09:46
- 4♀︎ Venus09:46 – 10:51
- 5☿︎ Mercury10:51 – 11:57
- 6☽︎ Moon11:57 – 13:03
- 7♄︎ Saturn13:03 – 14:09
- 8♃︎ Jupiter14:09 – 15:15
- 9♂︎ Mars15:15 – 16:21
- 10☉︎ Sun16:21 – 17:27
- 11♀︎ Venus17:27 – 18:33
- 12☿︎ Mercury18:33 – 19:39
Night
- 1☽︎ Moon19:39 – 20:33
- 2♄︎ Saturn20:33 – 21:27
- 3♃︎ Jupiter21:27 – 22:21
- 4♂︎ Mars22:21 – 23:16
- 5☉︎ Sun23:16 – 00:10
- 6♀︎ Venus00:10 – 01:04
- 7☿︎ Mercury01:04 – 01:58
- 8☽︎ Moon01:58 – 02:52
- 9♄︎ Saturn02:52 – 03:46
- 10♃︎ Jupiter03:46 – 04:41
- 11♂︎ Mars04:41 – 05:35
- 12☉︎ Sun05:35 – 06:29
Questions
How are the planetary hours calculated in Trieste?
On Thursday, 3 September 2026, the Sun rises at 06:28 and sets at 19:39: the day lasts 13h 11m, that is twelve day hours of 1h 06m. The night, until the next sunrise at 06:29, lasts 10h 50m: twelve night hours of 54 min.
Which planet rules the first hour that day?
Jupiter, from 06:28 to 07:34: 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.