To have something pop up after a time delay, you'll need to hide the visibility first.
Select the element you wish to hide.
Under the settings on the left hand side, go to Advanced Settings.
Under Visibility, uncheck both desktop and mobile.
In the top right menu, select Elements > Add Element > Countdown. From the three options within Countdown, choose "Minute Timer". This will appear in the top center of the page.
On the Minute Timer Settings (left hand side) navigate to Minute Settings, then update the hour, minute, or second field for the length of the timer you wish to use.
NOTE: If you accidentally hid something you didn't want to hide, you can find it by going to Elements > Manage > click the eyeball icon to unhide (or re-hide) an element.
Scroll down to Expire Actions > Choose "Show & Hide Element" from the dropdown.
Click Show Elements and check the box for the elements you want to show with the timer feature.
Click Save to confirm these changes.
If you don't want the timer to actually display on the page, click it.
On the left under "Minute Timer Settings" navigate to "Advanced"
Then uncheck both desktop and mobile
Save.
Now the timer will work invisibly.