Schema markup is code that makes it easier for search engines, crawlers and browsers to understand structured data regarding a website’s content or business, and it makes it easier for search engines to identify the websites of businesses with a physical location. 

Google and other search engines use Local Business Schema to enrich their knowledge about a business.

When a local search is conducted, this empowers them to know and display the following information:

• When the business is open/closed. 
• A business’s logo (and present it in the knowledge graph card on the right side of the Search results page). 
• The phone number of a business if someone searches for "{business name} phone number".

As a result, the search engine returns the website in relevant search results.