Does AWS RHEL EC2 billis per second or per hour?

So If I run an ec2 for 30min, will it be billed for just 30 min? or an hour?
I've seen that aws supports per-second billing for linux, is it applicable for RHEL too? As it has seperate cost assositat with it.

Also using Spot Instances.

So in summery will I be billed by hour or by seconds?

CodePudding user response：

According to faq https://aws.amazon.com/partners/redhat/faqs/

Whether it is on demand of spot instances

Red Hat Enterprise Linux on Amazon EC2 is offered at either a flat, hourly rate with no commitment (On-Demand or Spot Instances) or through a one-time, upfront payment (Reserved Instances). Both purchase options include Amazon EC2 compute charges and Red