Built on AWS’s Nitro System, the Amazon Time Sync Service now enables microsecond accurate time and nanosecond precision hardware timestamps on a wider range of EC2 instances. This supports ordered event logging, one-way latency measurement, and faster distributed transactions.
Customers can utilize Precision Time Placement Groups to deploy instances with Precision Time Protocol hardware clock enabled. Integration with Cluster Placement Groups allows low-latency workloads to benefit from precise time synchronization, optimizing time-sensitive applications across all commercial AWS regions.
Source & further reading
Amazon Time Sync Service adds support for Microsecond accurate time on 26 additional EC2 instance types in all commercial regions ↗Source published 2026-06-30. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.