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 Tuesday, 22 December 2026: day of Mars
- Sunrise
- 07:42
- Sunset
- 16:23
- Next sunrise
- 07:43
A day hour lasts 43 min; a night hour, 1h 17m. Local time (Europe/Rome).
Day
- 1♂︎ Mars07:42 – 08:26
- 2☉︎ Sun08:26 – 09:09
- 3♀︎ Venus09:09 – 09:53
- 4☿︎ Mercury09:53 – 10:36
- 5☽︎ Moon10:36 – 11:19
- 6♄︎ Saturn11:19 – 12:03
- 7♃︎ Jupiter12:03 – 12:46
- 8♂︎ Mars12:46 – 13:30
- 9☉︎ Sun13:30 – 14:13
- 10♀︎ Venus14:13 – 14:57
- 11☿︎ Mercury14:57 – 15:40
- 12☽︎ Moon15:40 – 16:23
Night
- 1♄︎ Saturn16:23 – 17:40
- 2♃︎ Jupiter17:40 – 18:57
- 3♂︎ Mars18:57 – 20:13
- 4☉︎ Sun20:13 – 21:30
- 5♀︎ Venus21:30 – 22:47
- 6☿︎ Mercury22:47 – 00:03
- 7☽︎ Moon00:03 – 01:20
- 8♄︎ Saturn01:20 – 02:36
- 9♃︎ Jupiter02:36 – 03:53
- 10♂︎ Mars03:53 – 05:10
- 11☉︎ Sun05:10 – 06:26
- 12♀︎ Venus06:26 – 07:43
Questions
How are the planetary hours calculated in Trieste?
On Tuesday, 22 December 2026, the Sun rises at 07:42 and sets at 16:23: 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?
Mars, from 07:42 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 Sun, Venus, Mercury, the Moon, Saturn, Jupiter, then Mars 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.