R attends the marriage on which of the following date and month?

Study the following information carefully and answer the questions given below. Eight persons – P, Q, R, S, T, U, V and W are attending the marriage function on two different dates either 15th or 28th of four different months – May, June, July and August of the same year, but not necessarily in the same order. W attends the marriage function on an even numbered date. V attends immediately after W. Only two persons attend between V and T, who attends after June. Both U and Q attend in the same month. Only three persons attend between Q and P. As many persons attend before S is same as after P. R does not attend the marriage in May.