Download the UParcel app now. 900am - 500pm Wednesday. Step Up Your Business With D4u Post Postsign Signs Design4u D4u D4uprintingsigns Fullcolor Reseda Resedablvd Northri Office Prints Ovalle Royal Plaza Monday-Friday 600am - 700pm Saturday 600am - 630pm Sunday 930am - 415pm. Northridge post office hours . 0930 AM - 0400 PM Sun. PO Box Access Hours. 5150 Payne Ave Dayton OH 45414. Address Phone Number and Hours for Northridge Post Office a Post Office at Payne Avenue Dayton OH. Post Office Lobby Hours. This Northridge Post Office is located in Los Angeles and are in the PST Time Zone. PO Box Access Hours. 0900 AM - 0530 PM Sat. Northridge Post Office can accept first-time passport applications and can facilitate passport renewals. Wednesday 900am - 530pm. Northridge Post Office Address 1185 Hightower Trail Atlanta Georgia 30350 Phone 770-649-0834 Hours Monday. Thursday 900am - 530pm. Address Phone Number and Hours for Northridge Post Office a Po...