Sade Sati meaning: Saturn's seven-and-a-half years, explained

Take your Moon sign from your birth chart, which is why an accurate birth time helps. Saturn takes roughly two and a half years to cross a sign, so its passage through the twelfth, first and second signs counted from your Moon adds up to about seven and a half years — hence the name, 'the seven and a half'.

Because it depends on Saturn's actual transit and your Moon sign, it is a straightforward astronomical calculation with no interpretive judgement in it. Two people with the same Moon sign share the same window. Saturn's retrograde motion can make a phase begin, pause and resume, which is why the period table on the calculator sometimes shows overlapping entries.

The first phase, with Saturn in the twelfth from the Moon, is traditionally read as expenditure of energy and a pull to withdraw — the phase where you stop coasting. The second, Saturn over the Moon itself, is described as the most demanding on mood and stamina; tradition emphasises rest, routine and honesty here. The third, Saturn in the second from the Moon, is read as consolidation: repair, resources and rebuilding.

Saturn's traditional signification is time, structure and consequence. Read as tradition reads it, Sade Sati is a period that removes what was not built properly and rewards work that is. Many people describe the outcome of the phase positively in hindsight.

It is not a period of guaranteed misfortune, it is not rare, and it is not a verdict. Every person alive passes through it two or three times, alongside a twelfth of the world at any moment. We will not predict illness, loss or any other event from it, and we do not put dates on outcomes.

What we will do is show you the exact windows for your own chart and describe which periods are traditionally considered favourable for new undertakings. Run the free calculator for your period table, then see the remedies page for the traditional practice.

Check your Moon sign first, since everything follows from it, and then the exact windows for each of the three phases — the calculator prints the table, including the overlaps Saturn's retrograde motion creates. Note which phase you are actually in, because the traditional advice for the three differs.

Then look at your running Vimshottari Mahadasha and Antardasha in the Dasha tool. A Saturn transit sits on top of whatever period you are already in, and practitioners read the two together rather than the transit alone. That combination, not the label, is what a careful reading is based on.