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, 27 May 2025: day of Mars
- Sunrise
- 05:22
- Sunset
- 20:42
- Next sunrise
- 05:21
A day hour lasts 1h 17m; a night hour, 43 min. Local time (Europe/Rome).
Day
- 1♂︎ Mars05:22 – 06:38
- 2☉︎ Sun06:38 – 07:55
- 3♀︎ Venus07:55 – 09:12
- 4☿︎ Mercury09:12 – 10:29
- 5☽︎ Moon10:29 – 11:45
- 6♄︎ Saturn11:45 – 13:02
- 7♃︎ Jupiter13:02 – 14:19
- 8♂︎ Mars14:19 – 15:35
- 9☉︎ Sun15:35 – 16:52
- 10♀︎ Venus16:52 – 18:09
- 11☿︎ Mercury18:09 – 19:25
- 12☽︎ Moon19:25 – 20:42
Night
- 1♄︎ Saturn20:42 – 21:25
- 2♃︎ Jupiter21:25 – 22:08
- 3♂︎ Mars22:08 – 22:52
- 4☉︎ Sun22:52 – 23:35
- 5♀︎ Venus23:35 – 00:18
- 6☿︎ Mercury00:18 – 01:01
- 7☽︎ Moon01:01 – 01:45
- 8♄︎ Saturn01:45 – 02:28
- 9♃︎ Jupiter02:28 – 03:11
- 10♂︎ Mars03:11 – 03:55
- 11☉︎ Sun03:55 – 04:38
- 12♀︎ Venus04:38 – 05:21
Questions
How are the planetary hours calculated in Trieste?
On Tuesday, 27 May 2025, the Sun rises at 05:22 and sets at 20:42: the day lasts 15h 20m, that is twelve day hours of 1h 17m. The night, until the next sunrise at 05:21, lasts 8h 39m: twelve night hours of 43 min.
Which planet rules the first hour that day?
Mars, from 05:22 to 06:38: 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.