

Of the Coordinated Universal Time (UTC) global standard through Network Time Protocol (NTP). This service uses a fleet of satellite-connectedĪnd atomic reference clocks in each AWS Region to deliver accurate current time readings

If your instance'sĭate and time are not set correctly, the date in the signature may not match the date of theĪmazon provides the Amazon Time Sync Service, which is accessible from all EC2 instances,Īnd is also used by other AWS services. Requests from your instance, these tools sign requests on your behalf. If you use the AWS CLI or an AWS SDK to make Most system logs include a time stamp that you can use to determine when problems occurredĪnd in what order the events took place.

A consistent and accurate time reference is crucial for many server tasks and processes.
