https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/set-time.html

The AWS documentation outlines methods for managing and synchronizing time on EC2 instances, primarily recommending the Amazon Time Sync Service for accurate, local NTP-based synchronization. The guide details configuration steps for Linux and Windows, sets UTC as the default time zone, and advises on clock source optimization for specific instance types. For complete instructions, refer to the AWS Documentation at AWS Docs.

Precision clock and time synchronization on your EC2 instance