Enterprise and public institutions of the operation and maintenance is a normal commute, but similar to your game company operation and maintenance to maintain the server 24 hours a day unexpected time, the arrangement of personnel on duty inversion is a normal situation, if encountered unexpected time overtime and overnight stay up all night is a normal situation, if the site or server for the foreign customers, the working hours are also The company's website and servers are targeted at foreign customers, and the working hours are also inclined to follow the demand.