If you have a Mac laptop, and use an external drive for a backup, you may have noticed it seems like Time Machine is calculating changes almost all the time, or at least way too often. This is probably because it starts a backup after the computer wakes from sleep.
If you’re like me, and don’t need hourly backups — one a day will do, thanks — there is a free program called TimeMachineEditor that lets you set a backup schedule. I have mine set for 2:30am so that it does not intrude on my work day.
