Always ensure you have NTP configured and enabled correctly on you vCenter Server and the ESXi hosts and time is synced successfully. If you are getting NTP related errors when upgrading your vCenter from 6.7 to 7.0, check out this post. #VMware #vCenter
NTP Error Upgrading vCenter Server VCSA 6.7 to 7.0
A look at an NTP Error Upgrading vCenter Server VCSA 6.7 to 7.0, troubleshooting, and a fix for the NTP error preventing VCSA 7 upgrade.