The IKM-Manning Community School District has announced they will be dismissing classes for the year an hour earlier than what was printed on the official school calendar. The last day of school for all students is Friday, May 24 and the new time for the Irwin Elementary building will be at 12:15 p.m. and the high school and middle schools in Manning will dismiss at 12:25 p.m. and 12:30 p.m. respectively.