Southwest Gas - Central Arizona typically provides customer service during standard business hours, which are generally Monday through Friday from 7 AM to 7 PM, except for certain holidays. During these hours, customers can expect assistance with inquiries related to billing, service issues, and other account-related matters. It is always advisable for customers to check the latest information regarding service hours, as there can be variations based on specific locations or changes in operational procedures. For the most up-to-date information on customer service hours, it is recommended to visit the official Southwest Gas website, where further resources and contact details are readily available.