The Cairo Post Office is one of the numerous rural post offices across the country that is seeing major changes in 2015. As of Feb. 7, the Cairo Post Office will have new window hours. They will be 8 a.m. to 11:30 a.m. and 12:00-2:30 p.m., Monday through Friday. Box up time (the time when all mail is placed in the boxes) will be 10:45 a.m. On Saturdays, the window will be open from 8:30-10:00 a.m. The rural route’s delivery times will be approximately 45 minutes later. Saturdays rural route delivery will remain the same as current times.