Editing Clock synchronization (section)

===Berkeley algorithm===
{{Main|Berkeley algorithm}}
The Berkeley algorithm is suitable for systems where a [[radio clock]] is not present. This system has no way of making sure of the actual time other than by maintaining a global average time as the global time. A [[time server]] will periodically fetch the time from all the time clients, average the results, and then report back to the clients the adjustment that needs be made to their local clocks to achieve the average.  This algorithm highlights the fact that internal clocks may vary not only in the time they contain but also in the [[clock rate]].