Google Calendar Add Event Pipeline

I am trying to create a pipeline that will send an invite to the user's google calendar when a meeting is scheduled. The pipeline is working and I am getting the calendar invite for the correct date however, it is not utilizing the time entered in the Date/Time field as the start time. This is pulling off of a Date/Time Field from the record created that triggered the pipeline. I have fields that split the date (Meeting Date) and time (Meeting Start Time) into two separate fields and have tried to use those in the pipeline but that shows as an incorrect format for date. Help!