I remember googling how to sync time on aws instances before and was surprised that they use atomic clocks: https://aws.amazon.com/blogs/aws/keeping-time-with-a

I remember googling how to sync time on aws instances before and was surprised that they use atomic clocks: https://aws.amazon.com/blogs/aws/keeping-time-with-amazon-time-sync-service/ https://aws.amazon.com/blogs/aws/keeping-time-with-amazon-ti...