By default, the key lifetime is infinite. The key is always valid.
Key configuration mode
Use the no form of the command to revert to the default lifetime.
The following example configures a lifetime from June 6 2020 to December 4 2020 (UTC) for key 10 in key chain 1.
device# configure terminal device(config)# keychain keychain1 device(config-keychain1)# key 10 device(config-keychain1-key10)# accept-lifetime 00:00:00|06/04/2020 23:59:59|12/04/2020
The following example configures a lifetime from June 6 2020 to December 4 2020 (local) for key 10 in key chain 1.
device# configure terminal device(config)# keychain keychain1 device(config-keychain1)# key 10 device(config-keychain1-key10)# accept-lifetime local true 00:00:00|06/04/2020 23:59:59|12/04/2020