Patent ID: 8578200

Claim:
A computer program product for converting a timestamp between a computing system and a subsystem, the computer program product comprising: a computer-readable non-transistory storage medium having computer-readable program code embodied therewith, the computer-readable program code comprising: computer-readable program code configured to: receive a relative timestamp from the subsystem; upon determining that a time skew has occurred based on the relative timestamp and a time base, update the time base by subtracting the relative timestamp from an absolute system time, wherein the time base is a conversion variable for converting the relative timestamp to an absolute timestamp and the absolute system time is a timestamp of a time measure used by the computing system and indicates when the relative timestamp was received, if the time base is updated, determine the absolute timestamp based on the relative timestamp and the updated time base, wherein the absolute timestamp is a timestamp of the time measure used by the computing system; and if the time base is not updated, determine the absolute timestamp based on the relative timestamp and the time base.