Thanks for the screenshot, @Mark3. Yes, you're right. The creation and modified date should show the actual dates that you create a back up for your data.
In this case, I'd recommend you check your system date first on Mac. Also, ensure that your Mac is connected to the Internet.
Here's how:
- Choose the Apple menu.
- Select System Preferences, then click Date & Time.
- In the Date & Time pane, ensure that ”Set date and time automatically” is selected.
Your Mac can then get the current date and time from the network time server selected in the adjacent menu. Once done, back up your data again and see if that works.
If you encounter the same issue after doing all those steps, I'd suggest you contact our Customer Care team. They can take a closer look at the issue and help you fix it.
I've got you an article that contains more information about how to back up your company file in QuickBooks Mac: QuickBooks Desktop for Mac 2019 User’s Guide.
Feel free to message again if you have other concerns. We're always delighted to help.
