Provided are systems, methods, and computer program products for determining operating hours of entities from user check-ins and check-outs. A method for determination operating hours may include obtaining check-in and check-out data for an entity having operating hours, aggregating the check-in and check-out data over an aggregation period, and determining a start time and an end time of the operating hours of the entity. The method may include aggregating the check-in and check-out data over multiple aggregation periods and determining operating hours for different aggregation periods.