dd/mm/yyyy format.dd/mm/yyyy format and vSphere Client UI preference selected to browser default the format is not correct.vCenter Server 7.0.x
vCenter Server 8.0.x
This is a known issue in vCenter Server 8.x / 7.x releases and currently there is no resolution. Broadcom engineering is working towards fixing this issue in a future release.
Workaround
Note: This change is not persistent reverts to mm/dd/yyyy after a session timeout or upon logging.
My Preferences > Language, select Specify Language, and reload the page.My Preferences > Language and select Browser Defaultdd/mm/yyyy.