Saturn Sign Calculator

What Your Saturn Sign Describes

Saturn describes structure: where you feel tested, where you work hardest, what you fear getting wrong and where you eventually become an authority. Its lessons tend to come slowly, and what they build tends to last. Read more about Saturn in astrology.

How the Saturn Sign Is Calculated

Saturn takes about 29.5 years to circle the zodiac and spends about 1.6 years in a sign on average. Each year it turns retrograde for about four and a half months, which can carry it back across a cusp: the longest single stay from 1900 to 2060 lasted 3 years.

Around ages 29, 58 and 87 Saturn returns to its birth position. The first Saturn return is one of the best-known transits in astrology.

Why Birth Time Matters

Saturn changes sign on only about 1 day in 429. For almost every birthday the date alone gives the sign, and the birth time adds the exact degree and the house. If Saturn changed sign on your birth date, the calculator shows both signs and tells you so.

With your birth time and place, the result also gives the exact degree and the house, the area of life where this placement works.

How Accurate Is It?

Positions come from Selfgazer's astrology engine, the same one that draws the chart in your astro room: VSOP87 planetary theory through Astronomy Engine, with Chiron from Swiss Ephemeris tables. Tested against the Swiss Ephemeris, planets agree to within half an arcminute and house cusps to within a tenth of an arcminute. Your local birth time is converted with your birthplace's historical time zone rules, including past daylight saving changes. Everything is calculated in your browser, and nothing you enter is stored.