ahead of schedule
Earlier than a given deadline. Since the contractor and his crew completed the renovations ahead of schedule, we were able to move into the house before winter arrived. Repaying your loan ahead of schedule will save you money in the long term by reducing the amount of interest you'll have to pay.
*ahead of schedule
Fig. having done something before the time given on a schedule or before the expected time. (*Typically: be ~; finish ~.) I want to be able to finish the job ahead of schedule.