Business hours can affect Google Maps ad delivery because Google may use your listed hours to determine when customers are likely to reach or interact with your business. If your ads are limited to certain hours, you may miss searches and potential customers outside that schedule. Keeping your Business Profile hours accurate is important, especially if you want customers to call or visit.
For businesses that rely on phone calls, showing ads when someone is available to answer can also help improve lead quality and reduce missed opportunities. Review your hours regularly, especially during holidays or seasonal changes.