Amazon стал выставлять счета в секундах

techcrunch.com/2017/09/18/aws-announces-per-second-billing-for-ec2-instances/
aws.amazon.com/ru/premiumsupport/knowledge-center/ec2-instance-hour-billing/

When Amazon launched the AWS EC2 cloud computing service back in 2006, per-hour billing was a big deal, but that scheme also meant that you’d pay for a full hour even if you only used an instance for a few minutes. Over the last few years, AWS’s competitors moved to more flexible billing models (mostly per-minute billing) and now, starting October 2, AWS is one-upping many of them by moving to per-second billing for its Linux-based EC2 instances.

Раньше они считали по часовую оплату с 2006 года.
Но теперь стали считать до секунды :)
С 2 октября 2017.