How to Format an External Hard Drive for Mac Time Machine?

MacOS 10.15 Catalina Time Machine Backup Guide

Launch Disk Utility Applications > Utilities > Disk Utility.
Select the hard drive device and click Erase erases everything, cannot be undone.
Name your drive e.g. Time Machine Backup, select the Mac OS Extended Journaled format, and click Erase.

What is the Best Format for a Mac External Hard Drive?

HFS+ Mac OS Extended Journaled is the best format for an external or portable hard drive youre only using on a Mac. Or sharing with a Mac. APFS is a format option for external drives on Macs running MacOS 10.13 or later.

How do I Format my External Hard Drive for Mac 2020?

Start Up Your Mac And Log In.
Plug In Your External Hard Drive.
Now, Open Up Disk Utility.
Inside Disk Utility.
Click Erase At The Top Of The Pop Up Window.
Your Settings For The Format Of Your External Hard Drive.
Click On Erase.
Youve Formatted Your Drive On Your Mac.