Editing Clock synchronization (section)

===Cristian's algorithm===
{{Main|Cristian's algorithm}}
Cristian's algorithm relies on the existence of a time server.<ref>{{Citation
| last=Cristian
| first=F.
| title=Probabilistic clock synchronization
| journal=Distributed Computing
| volume=3
| issue=3
| year=1989
| pages=146–158
| publisher=Springer
| doi=10.1007/BF01784024
| s2cid=3170166
}}</ref>  The time server maintains its clock by using a radio clock or other accurate time source, then all other computers in the system stay synchronized with it.  A time client will maintain its clock by making a [[procedure call]] to the time server.  Variations of this algorithm make more precise time calculations by factoring in network [[radio propagation]] time.