Public Service of New Hampshire typically offers customer service operations during standard business hours, which are generally from 7:30 AM to 5:00 PM, Monday through Friday. However, it is important to note that hours may vary, especially during holidays or significant weather events. Additionally, Public Service of New Hampshire may provide emergency services outside of regular hours. For the most accurate and up-to-date information regarding customer service hours, it is advisable to check the official website. On their site, customers can also find relevant contact information should they need assistance or have additional inquiries.