In Mac OS X 10.5 Leopard Apple has introduced Time Machine, a very convenient way to make backups. Unfortunately the backup interval is preset constantly to one hour. Apple uses an launchd daemon to control the timing, but changing the interval value in the launchd.plist file has no effect. TimeMachineScheduler disables the automatic backup function of Time Machine and installs its own launchd agent. As the agent is located in the main library, the administrator password is required for all (writing) operations. Except disabling Time Machine no further system files and preferences wil... [ read more ]