Auto The program determines when to make the next setting based on the accuracy of previous settings and the accuracy level desired. Using information from the last setting where the clock was changed ClockWatch determines when the next setting needs to occur to maintain the accuracy you've selected. Since the rate of loss is not constant for most computers an uncertainty factor is used in making the scheduled time calculation. Once when you want to set the clock at a given time in the future, for example to synchronize with another computer or system. Daily to maintain the clock at accuracy at a reasonable level suitable for most users.
Auto is best when the desired level of accuracy is known and the time drift is relatively constant.
Periodic is appropriate for the most demanding environments when the clock must be kept within several seconds of standard time. If the time difference between readings is relatively constant then the Auto setting will probably be the best choice. The trial version is fully functional software. Registered users get some additional features found in the Pro version of the software. You can register on Beagle Software's web site , send an order form via postal mail, E-mail or fax or call Beagle Software.