CREATE GOOGLE CALENDAR EVENT - PROBLEM WITH START TIME

Hello, I am using OCR to get the payment date for a document and put this value in a variable of type String in the format dd/MM/yyyy. The problem is, CREATE EVENT needs Start Time in Date value in the format MM/dd/yyyy.
I tryed to use, split to change the position between dd and MM, but Start Time don´t accept.
How can I transform the information in String variable to Date variable?
I manually entered Starttime to test the robot and worked perfectly.