Selecting Administration > Time/Date in Expert mode brings up the form shown in the following figure.You can use the Time/Date form in Expert mode to set the ACS’s time and date in one of the following two methods.Enabling Network Time Protocol (NTP) synchronizes the ACS’s system clock with an NTP server, which maintains the true time (the average of many high-accuracy clocks around the world).Expert > Administration > Time/Date > NTP Enable