One of my acquaintances has not been attending work at his company since April 1st until May 31st due to personal reasons without providing any information. Consequently, the company has recorded his absences as NCP days in the Provident Fund. Subsequently, he submitted his resignation dated May 20th on June 5th. Now, he is seeking to determine the date of his exit. Which date should he consider as the date of exit in the Provident Fund - June 5th, May 20th, or May 31st?