In an example of a system and method for time-based local authentication, an Information Handling System (IHS) may include a processor and a memory coupled to the processor. The memory may have program instructions stored thereon that, upon execution, cause the IHS to generate a first time token and to transmit the first time token to a secondary IHS via a local network, where the secondary IHS is configured to generate a second time token and to transmit the second time token to the IHS via the local network. The IHS may receive the second time token from the secondary IHS and it may determine whether the first time token matches the second time token. In response to the first time token matching the second time token, the IHS may receive access to a protected resource.