month based puzzle level 1 test 4

Nine people M, N, O, P, Q, R, S, T and U have their joining in a particular company in different month i.e. January, February, May, June, July, September, October, November and December of the same year but not neccessarily in the same order. P has  the joining before June. but not in the month which has more than 30 days. Four people have the joining between U and P. Q
has joining after U. Three people have the joining betwen Q and M. Two people have the joining between M and R. Two people have the joining between N and O both have the joining
before Q. O has the joining after M. S has the joining before T. T does not have joined in the month of 31 days