TimeMachineEditor is a software for macOS that starts backups in Time Machine at particular times. You can choose an interval or create other types of scheduling.
This is useful if you don’t need to backup every hour and don’t want the performance penalty. For example you might be frequently creating or modifying files which would cause long-running backup operations throughout the day.
I have my Mac backing up to a network drive, which with the default settings was constantly being hammered with new backups. Thanks to this app I set up the backups to run while I'm away from home and the computer is left unattended.
The scheduling options you have here are really powerful. In addition to simply having the backup running every hour/several hours, you can define backups to run at specific times of specific days, or have the app run backups when the Mac is not being used. In addition to this you can set a time window when backups shouldn't be run (IE when you're trying to sleep), when the Mac is not connected to power or ethernet or if an app is preventing system sleep.
One final note is that the developer of this app has chosen not to pay for an Apple developer account, so the application is not signed. So the first time you run it, you'll need to manually allow it to run by choosing "Open" from the finder context menu. Alternatively you can just install from homebrew which will take care of this for you automatically.
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Accessibility Comments
This app works perfectly with VoiceOver. When you launch the application, you'll get a very simple dialog to configure your schedule with a save button at the bottom of the window to confirm your changes. Every control is clearly labeled.