A company is planning to migrate its on-premises data analysis application to AWS. The application is hosted across a fleet of servers and requires consistent system time. The company has established an AWS Direct Connect connection from its on-premises data center to AWS. The company has a high- precision stratum-0 atomic clock network appliance that acts as an NTP source for all on-premises servers. After the migration to AWS is complete, the clock on all Amazon EC2 instances that host the application must be synchronized with the on-premises atomic clock network appliance. Which solution will meet these requirements with the LEAST administrative overhead?