How do I set up Time Machine to sync my Icloud drive at night with an external hard drive
How do I set up Time Machine to sync my Icloud drive at night with an seagate external hard drive
MacBook Pro 15″, macOS 12.7
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It's not clear what you want. Time Machine isn't a synchronization device; Time Machine is a backup app. In general, when you use Time Machine, it backs up all your data on your Mac. It runs the backup routine usually once an hour and, except for the very first one, it doesn't take very long, because Time Machine does incremental backups, recording the change that have occurred since the last backup. You can see some details here:
Back up your Mac with Time Machine - Apple Support
I backup my MacBook when I get home-- I plug in my Time Machine drive and, if I'm doing no more work, I unplug it before it goes again in an hour.
iCloud Drive Backups: Do you have "Optimize Mac Storage" turned on at System Settings>[name]>iCloud>iCloud Drive? If so, then your iCloud Drive files may not be kept locally on your Mac, and so they can't be backed up there. If you don't use "Optimize," then our iCloud files are all on your Mac and they automatically get backed up by Time Machine.
You may want to see this:
Understanding iCloud Drive - Apple Community
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