To establish a secure TLS connection to a vCenter Server (the server), the system where you are running the CLI installer (the client) must not have its system clock slower or faster than the server's system clock by an acceptable limit (tolerance).

See Client Clock Tolerance for specific values for each deployment scenario.

Note: The client clock values are applicable only for vCenter Server 6.7 and later.
Table 1. Client Clock Tolerance
Deployment Scenario Clock Tolerance Connection Notes
Linking one vCenter Server with another vCenter Server When deploying the second vCenter Server, the clock tolerance for the client and the first vCenter Server must not exceed 10 minutes.
Installing a vCenter Server appliance using a container vCenter Server with a *._on_vc.json template. The maximum clock tolerance between the client and the container vCenter Server is 8 hours 20 minutes.