This app was created by a Deputy Probation Officer for probation officers in the State of California. It is designed to accurately and quickly calculate time tolled for mandatory supervision cases - 1170(h) PC. Upon entering the start and end dates of mandatory supervision, as well as the violation dates, the app will calculate the total actual days on mandatory supervision, the offenders total violation custody time, and the total days remaining on mandatory supervision. It is an essential tool, not only for probation officers and court officers, but also for defense attorneys, district attorneys, and even judges.