When investors think about financial mistakes, they usually quantify them in rupees. A pause in systematic investment plans (SIPs), an occasional withdrawal from investments, or a missed savings target is often judged only by the amount involved. Yet the bigger cost is often far less visible: the cost of time.Lost money can often be recovered. A salary hike, a bonus, an additional income stream or a few years of disciplined saving can help replenish depleted savings. Lost time, however, is much harder to recover.In investing, the greatest damage often comes not from an immediate financial loss, but from the loss of compounding caused by delays and interruptions. Every financial goal has a timeline. A young professional may want to retire at 55. Parents may be building a corpus for their child’s higher education over the next 15 years. Another investor may be saving for a home purchase a decade away. Achieving these goals depends not only on how much is invested, but also on how long the money stays invested.Compounding works best when given adequate time. The longer money stays invested, the greater its ability to generate returns on both the principal and the accumulated gains. Conversely, any disruption to this process can push financial goals further into the future.The encouraging part is that the reverse is also true. Small positive decisions—such as increasing SIPs when income rises, avoiding unnecessary withdrawals and staying invested during market volatility— can help investors gain valuable years. To understand how time affects wealth creation, consider a hypothetical investor who aims to build a corpus of Rs.1 crore through a monthly SIP of Rs.20,000 and expects a return of 10% annually. If the SIP continues uninterrupted, the target corpus can be accumulated in approximately 198 months, or about 16 years and 6 months.Table 1How temporary interruptions delay financial goals