This read-write value, per its NsRecoveryTime syntax, sets the delay used when nncExtNsCandidateRecoveryKind is configured for timed recovery back to this candidate source. An admin tunes it to control how long the device waits, once a higher-priority source becomes available again, before switching the active clock reference back to it. For example, an admin using timed recovery might set this to several minutes to ensure a recovering clock source is genuinely stable before the device commits to switching back (illustrative exact units, since the source MIB has no DESCRIPTION text).