Now() for multiple times

Greetings,
I made a form with the online form builder. My goal is for folks collecting data to be able to put a start time for multiple surveys in one form. As of now, I made a question (are you read?) with one option (yes), when yes is chosen a datetime field which has a skip logic thingy so it only shows up when yes is selected. the datetime field has a default of now(), but this just returns the time of the first survey. I want the people surveying to see this time so they can confirm it is the correct time they surveyed.

I’ve read about triggers and calculations, but I’m lost. Is there a simple way in the online builder to add a trigger or make now() be now and not the start of the survey.

Thanks

Here is the xls downloaded after I use the online builder:

Welcome to the community, @saradykman!

Sorry did not quite understand this requirement.