Mac User Guide
- Welcome
- What’s new in macOS Sequoia
-
- Intro to Continuity
- Use AirDrop to send items to nearby devices
- Hand off tasks between devices
- Control your iPhone from your Mac
- Copy and paste between devices
- Stream video and audio with AirPlay
- Make and receive calls and text messages on your Mac
- Use your iPhone internet connection with your Mac
- Share your Wi-Fi password with another device
- Use iPhone as a webcam
- Insert sketches, photos and scans from iPhone or iPad
- Unlock your Mac with Apple Watch
- Use your iPad as a second display
- Use one keyboard and mouse to control Mac and iPad
- Sync music, books and more between devices
-
- Control what you share
- Set up your Mac to be secure
- Allow apps to see the location of your Mac
- Use Private Browsing
- Keep your data safe
- Understand passwords
- Change weak or compromised passwords
- Keep your Apple Account secure
- Use Mail Privacy Protection
- Use Sign in with Apple for apps and websites
- Find a missing device
- Resources for your Mac
- Resources for your Apple devices
- Copyright
About Time Machine local snapshots on Mac
Time Machine makes copies, each hour, of files that have changed. These local snapshots are stored on the same disk as the original files, and are separate from backups stored on your backup disk. These files are stored for up to 24 hours or until space is needed on the disk. When your normal backup disk isn’t available, local snapshots are a convenient way to retrieve earlier versions of your files. It is recommended that you always perform normal backups in case of a disaster.
Note: The date of the latest local snapshot is not reflected in the latest backup dates shown in Time Machine Settings.
Important: Local snapshots are only stored on disks using Apple File System (APFS) when Back Up Automatically is selected in Time Machine settings.
On your Mac, choose Apple menu 
in the sidebar, then click Time Machine . Time Machine automatically removes local snapshots when space is needed on the disk or when they are older than 24 hours.