Collinsville Community Unit School District 10 issued the following announcement on June 2.
During June and July, all CUSD 10 offices will be open Monday-Thursday from 7:00 a.m. until 4:30 p.m.
Summer hours begin Monday, June 4, 2018.
Regular office hours will resume on Monday, July 30. Those hours are Monday-Friday from 8:00 a.m. until 4:30 p.m.
Original source can be found here.
Source: Collinsville Community Unit School District 10