Crittenden County Convenience Center, known as the county's trash dump, has altered its hours. The center has shaved a half-hour off its schedule for Monday, Tuesday, Thursday and Friday. It began its new 8 a.m.-to-3:30 p.m. schedule on those days last Friday. The center is manned by Crittenden County Detention Center staff and work release inmates. Jailer Robbie Kirk said the dump will remain open 8 a.m. to noon on Wednesday and Saturday. It is closed on Sunday.