Basically, you can manually set the times in each esxi GUI to match what you think the NTP server time is- within a couple minutes. Then since the box is checked by default for the VM to sync time with the host, the acm and vcsa etc should auto sync to the hosts- so really only the esx hosts should need to sync directly w NTP. If needed, can also manually set the time on a physical Av or DD if getting similar messages about those. That should allow the Deployment to move past the initial Net config stage.
See the below link for many more Deployment issues/answers: