Sade Sati, literally seven and a half in Hindi, is the roughly seven and a half year period when transiting Saturn moves through the sign before your natal Moon sign, your own Moon sign, and the sign after it. Saturn takes about two and a half years to cross each sign, so the full cycle across these three signs runs close to seven and a half years, giving the transit its name. It happens to everyone, roughly once every 27 to 30 years on average, since it is tied purely to Saturn's slow orbit relative to wherever your Moon happened to be at birth.

This calculator computes three phases. The first phase, often called the rising phase, runs while Saturn transits the sign immediately before your Moon sign. The second, the peak phase, runs while Saturn transits your own Moon sign. The third, the setting phase, runs while Saturn transits the sign after your Moon sign. We report which phase you are in if Sade Sati is currently active, the date your current phase ends, and the full window for the current run. If it is not currently active for you, we compute your next window instead, so you know exactly when to expect it.

Saturn does not move in a straight line: it regularly appears to slow down, stop, and move backward (retrograde) from Earth's point of view before resuming forward motion. This means Saturn can dip back out of a sign shortly after entering it, then re-enter later. This calculator treats a short retrograde dip as part of the same continuous window rather than a separate, second Sade Sati, which matches how classical timing treats the transit: the envelope runs from Saturn's first entry into the earlier sign to its final exit from the later one, bridging brief reversals in between.

Classical texts describe Sade Sati as a period of significant restructuring: Saturn is the planet of discipline, limitation, patience and long-term consequence, and its extended presence near your Moon (your mind and emotional foundation) is traditionally read as pressure to mature, let go of what no longer serves you, and build something more durable. This is not, despite its popular reputation, uniformly described as a period of guaranteed hardship. Its effect varies considerably depending on Saturn's own strength and dignity in your full chart, which house your Moon sits in, and which planets aspect or occupy your Moon sign, none of which a Moon-sign-only calculator like this one can fully capture.

A related but separate transit worth knowing about is Kantaka Shani (Saturn in the 4th from the Moon) and Ashtama Shani (Saturn in the 8th from the Moon), sometimes called the mini Sade Sati windows, which some traditions treat with similar caution though they are shorter and not part of the classical seven and a half year definition itself. This calculator focuses specifically on the classical three-sign Sade Sati window as defined above, since that is the well established, named transit most people are asking about.

If you are currently in a phase, it is worth remembering that the popular fear around Sade Sati is disproportionate to what classical texts actually describe, and that a strong, well dignified Saturn in your birth chart tends to soften this transit considerably rather than worsen it. The specific effect on your career, health or relationships depends on your full chart, not the Moon sign alone, which is exactly the kind of nuance a complete reading with Purohit can walk through with you.

To see this transit alongside your full natal Saturn placement, dasha timeline and complete planet table, generate your free kundli. To ask what your specific phase means in practice, chat with Purohit on WhatsApp.