Box and lobby hours at the post office on Catoonah Street are Monday through Friday 4:30 a.m. to 6 p.m., Saturdays from 4:30 a.m. to 4:30 p.m., and Sundays (boxes section only) from 10 to 1. The window is open Monday-Friday, 8:30 to 6, and Saturday 9 to noon. It’s closed Sundays and all federal holidays. For more information, call 203-438-6561.