The containers in my k8s cluster need to be set to the correct time with high accuracy, meaning that I can only handle 10s of milliseconds difference max.
Do I need to setup NTP configuration for the containers on Google Kubernetes Engine to make sure that that clock in the containers is set to the correct time?
No. You don't need to do any of your own NTP configuration. Google Kubernetes Engine (GKE) runs a timesyncd service in each of the containers. The service is pre-configured to sync up with Google's NTP servers. If you want to set the time yourself, you need to stop the timesyncd service and override the time settings manually.
来源：https://stackoverflow.com/questions/48792742/how-do-i-set-the-correct-time-in-my-google-kubernetes-engine-container-do-i-nee