What's the difference between office and gate hours?

The office hours are 930am-6pm

Gate hours are from 6 am to 8 pm (use of the property) and the office hours are from 8 am to 6 pm (someone there to help you).

The office hours are the hours of operation for the property. During these hours the Store Manager will be available to assist you with your storage needs or moving and packing supplies. The gate hours are the hours of the property, and when your unit can be accessed.