Current Time for Indicator Block

I currently have an Edit Indicator on my dashboard and I display the last time my device state was updated:

Last Updated
{{formatDate time-0 ‘MM/DD/YY h:mm A’}}

This works well. However, I would like to change the background color to red if the state change was over 60 minutes ago.

How do I subtract time-0 from current time?

{{subtract {{currentDateTime ‘x’}} {{time-0}} }} > 3600000

Thank you in advance,

You want to use a subexpression for this:

{{subtract (currentDateTime 'x') time-0}} > 3600000

That worked! Thank you!