A 60-day Good-Till-Cancelled order designates a time-in-force parameter where a limit or stop order remains active in the market for a maximum duration of up to sixty calendar days unless it is executed or explicitly cancelled by the trader beforehand. If the specified target price is not reached within this sixty-day window, the brokerage system automatically cancels and removes the order from the active queue, requiring the investor to re-enter a new instruction if desired.