Need help formatting a date in a Automation

I have an Automation to send an email when a record enters a view. I can get a regular date field to format the way I want, but I can’t when I try to do any calculations. This is a Deadline date that I would like to add 48 hours to from the time it enters the view.

Anyone have any suggestions on how to do this? I’ve tried multiple variations of the following. I’ve also tried using Update Record Automation, but it won’t accept DATEADD() or I’m not doing something correctly.

If it’s just a plain date field, I can use this and it works fine:
DATETIME_FORMAT(SET_TIMEZONE(
{Test Date}, ‘America/Los_Angeles’),‘dddd, MMMM D, YYYY h:mm a’)

But if I try adding 48 hours using something like this to an Intermediate Due Date:
DATEADD({Deadline},48,’hour’)

And change the formula to this:
DATETIME_FORMAT(SET_TIMEZONE(
DATEADD({Intermediate Due Date}, 48,’hour’), ‘America/Los_Angeles’),‘dddd, MMMM D, YYYY h:mm a’)
It fails and says the formula is invalid.

Even when it looks correct in the View,
What I end up with in the Automation Send email is this: 2021-12-10T07:48:53.000Z

not this: Saturday, December 11, 2021 6:45 am

Thanks for any help you can give me,
Tammy