"Sync Clock" and Timewarps

Hi All,

          We are using Avalanche to sync the clocks of our devices (Motorola MC75 and MC75A's) with the server. Here are our enabler settings:

We have observed within our application log throughout a 24hr period the device clock can go forward and backward. Typically the variation is minutes but we have also observered years e.g. 1996, 2003 on some devices.

Has anyone noticed similar behaviour?  How does Avalanche sync the fleet of devices to the server time?

2013-09-05 18:05:04,000 [DEBUG] [-1411816998] - Dequeue

2013-09-05 18:05:04,000 [DEBUG] [-1411816998] - PersistQueue

2013-09-05 18:05:04,000 [INFO] [-1411816998] - Save (+): TransmitMessages

2013-09-05 18:05:04,000 [INFO] [-1411816998] - Save (-): TransmitMessages

2013-09-05 18:05:04,000 [DEBUG] [-1411816998] - PersistQueue

2013-09-05 18:04:34,000 [DEBUG] [-1411816998] - Dequeue     <-- Note: Time has gone backwards!

2013-09-05 18:04:44,000 [INFO] [-1411816998] - TransmitMessage HealthReportMessage: battery charge percent: 255,

Thanks.