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, 21 October 2026: day of Mercury
- Sunrise
- 07:29
- Sunset
- 18:09
- Next sunrise
- 07:30
A day hour lasts 53 min; a night hour, 1h 07m. Local time (Europe/Rome).
Day
- 1☿︎ Mercury07:29 – 08:22
- 2☽︎ Moon08:22 – 09:15
- 3♄︎ Saturn09:15 – 10:09
- 4♃︎ Jupiter10:09 – 11:02
- 5♂︎ Mars11:02 – 11:55
- 6☉︎ Sun11:55 – 12:49
- 7♀︎ Venus12:49 – 13:42
- 8☿︎ Mercury13:42 – 14:35
- 9☽︎ Moon14:35 – 15:29
- 10♄︎ Saturn15:29 – 16:22
- 11♃︎ Jupiter16:22 – 17:15
- 12♂︎ Mars17:15 – 18:09
Night
- 1☉︎ Sun18:09 – 19:15
- 2♀︎ Venus19:15 – 20:22
- 3☿︎ Mercury20:22 – 21:29
- 4☽︎ Moon21:29 – 22:36
- 5♄︎ Saturn22:36 – 23:43
- 6♃︎ Jupiter23:43 – 00:49
- 7♂︎ Mars00:49 – 01:56
- 8☉︎ Sun01:56 – 03:03
- 9♀︎ Venus03:03 – 04:10
- 10☿︎ Mercury04:10 – 05:16
- 11☽︎ Moon05:16 – 06:23
- 12♄︎ Saturn06:23 – 07:30
Questions
How are the planetary hours calculated in Trieste?
On Wednesday, 21 October 2026, the Sun rises at 07:29 and sets at 18:09: the day lasts 10h 40m, that is twelve day hours of 53 min. The night, until the next sunrise at 07:30, lasts 13h 21m: twelve night hours of 1h 07m.
Which planet rules the first hour that day?
Mercury, from 07:29 to 08:22: 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.