One of the most useful pieces of Mac software I’ve ever come across is, TimeMachineEditor. As the name implies, it allows you to edit the interval in which your Time Machine backups occur. It’s free, and it’s super easy to use!
Time Machine works very well for automatically backing up your Mac, but if you’re backing up to a network drive, like a Time Capsule, your Mac and your network can suffer some performance hits while the backup is in progress.
Time Machine runs every hour, and Apple didn’t include a way to edit that interval. I deal with a lot of big files that change often, so the result is Time Machine was constantly running, and I was really feeling that performance drop. With TimeMachineEditor I’m able to change that schedule so Time Machine only runs twice per day… once while I’m at lunch and once in the evening. It’s actually extremely flexible, as it will allow you to define anything from a new repeating interval, to scheduled hourly, daily, weekly, and monthly times.
If you use Time Machine to backup your Mac, I highly recommend using TimeMachineEditor.