Time Machine is Apple's backup system that automatically saves your Mac's files. Here's how to use the macOS file protection feature.

Here's how to automatically or manually back up your data, and then restore it on your Mac using Apple's Time Machine feature ...

A Mac laptop can work perfectly well as a networked Time Machine destination, but if you take it somewhere else, put it to sleep, or unplug it from battery power, backups cannot occur.

Mac 911 How to manage Time Machine backups between APFS and HFS+ drives Your HFS+ Time Machine volumes can give you a depth of recovery for older snapshots, but APFS is the way of the future.