Time synchronization using the Internet

Area of Science:

• Computer Science
• Network Engineering
• Distributed Systems

Background:

• Accurate time synchronization is crucial for networked computer systems.
• Existing methods may be costly or lack precision for certain applications.

Purpose of the Study:

• To introduce a new algorithm for synchronizing clocks on networked computers.
• To leverage statistical modeling for enhanced time synchronization accuracy and cost-efficiency.

Main Methods:

• Developed a statistical model for computer clocks and network latency.
• Designed a frequency-lock loop disciplined by the statistical model.
• Tested the algorithm by synchronizing a workstation to a remote time server (1200 km).

Main Results:

• Achieved a root-mean-square (rms) time offset of 2 ms from Coordinated Universal Time (UTC).
• Demonstrated the algorithm's effectiveness over a significant geographical distance.
• Validated the statistical model's utility in parameter definition.

Conclusions:

• The proposed algorithm offers a cost-effective solution for high-accuracy network time synchronization.
• The underlying statistical modeling approach can be adapted for algorithms with varying accuracy and cost requirements.
• This work advances the field of distributed system timekeeping.