TimeMachineEditor... Change the one-hour interval of Time Machine backups. You can change the interval or decide to make a backup once a day, once a week or once a month.
TimeMachineEditor installs nothing in your system, it merely tells the system when Time Machine should be called.
MACSTERDAM I started using TimeMachine only just recently, in addition to Smart Backup. It annoyed me that I had so little control over it. This application solves a lot of those nuisances. It's simple, does what it claims to do, just brilliant: a well deserved 5 stars. Thanks very much!! (Version 1.3)
DRAECHEN You can fine tune your controlling of the interval even more than this app may allow. (I admittedly have never used it)-There are instructions on macosxhints about setting the time inteveral: