Google recommends that you use the Opening Hours Specification to add hours to your Local Business or Organization.
Here’s how to do it:
Search for “Opening Hours Specification” in Schema.org types.
In the pop-up that appears name your data item and then click “Create”.
Add details for opening and closing hours and the days of the week they apply to. Use the + symbol to add additional days.
Note: If there are different hours for different days, you will need to create an Opening Hours Specification for each group of days.