EC2 per-second billing introduced October 2, 2017 — replacing hourly increments in place since 2006

Summary

Claim: AWS introduced per-second billing for EC2 on October 2, 2017, replacing the hourly billing increments in place since the 2006 launch.

Source: AWS blog.

Confidence: Verified.

Why this matters for Candid: The granularity shift is part of the structural "metered like a utility" story — short-lived workloads (Lambda-style or burst) are now billed at the resolution at which they actually run, not rounded to the hour.