Methods, systems and computer program products for synchronizing clocks of nodes on a computer network

Abstract

Methods, systems and computer program products are provided for synchronizing clocks in a computer network. A first node clock is synchronized to a second node clock by establishing an initial value of a virtual second node clock at the first node. The initial value may be established based on the first node clock and a timing record received from the second node. A frequency bias adjustment factor is determined for the virtual second node clock based on a plurality of clock requests from the first node and a plurality of corresponding responses from the second node spaced apart in time. The responses from the second node include the timing record based on the second node clock. A time of the virtual second node clock is provided based on the frequency bias adjustment factor responsive to requests for the virtual second node clock at a time between requests.