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 Saturday, 17 October 2026: day of Saturn
- Sunrise
- 07:23
- Sunset
- 18:15
- Next sunrise
- 07:25
A day hour lasts 54 min; a night hour, 1h 06m. Local time (Europe/Rome).
Day
- 1♄︎ Saturn07:23 – 08:18
- 2♃︎ Jupiter08:18 – 09:12
- 3♂︎ Mars09:12 – 10:06
- 4☉︎ Sun10:06 – 11:01
- 5♀︎ Venus11:01 – 11:55
- 6☿︎ Mercury11:55 – 12:49
- 7☽︎ Moon12:49 – 13:44
- 8♄︎ Saturn13:44 – 14:38
- 9♃︎ Jupiter14:38 – 15:32
- 10♂︎ Mars15:32 – 16:27
- 11☉︎ Sun16:27 – 17:21
- 12♀︎ Venus17:21 – 18:15
Night
- 1☿︎ Mercury18:15 – 19:21
- 2☽︎ Moon19:21 – 20:27
- 3♄︎ Saturn20:27 – 21:33
- 4♃︎ Jupiter21:33 – 22:39
- 5♂︎ Mars22:39 – 23:44
- 6☉︎ Sun23:44 – 00:50
- 7♀︎ Venus00:50 – 01:56
- 8☿︎ Mercury01:56 – 03:02
- 9☽︎ Moon03:02 – 04:07
- 10♄︎ Saturn04:07 – 05:13
- 11♃︎ Jupiter05:13 – 06:19
- 12♂︎ Mars06:19 – 07:25
Questions
How are the planetary hours calculated in Trieste?
On Saturday, 17 October 2026, the Sun rises at 07:23 and sets at 18:15: the day lasts 10h 52m, that is twelve day hours of 54 min. The night, until the next sunrise at 07:25, lasts 13h 09m: twelve night hours of 1h 06m.
Which planet rules the first hour that day?
Saturn, from 07:23 to 08:18: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Jupiter, Mars, the Sun, Venus, Mercury, the Moon, then Saturn 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.