To provide a time recorder network system for processing information of a time recorder in a centralized manner.

A time recorder 4 installed on a client 3 side has a work-hours information recording function and a communication function with the client 3, and the client has a function of linking personal information registered in the client or a server 2 with a time card number. When a monthly time card is issued, the time recorder transmits time card information to the client, and the client links the time card number information with the personal information. When work-hours information stored in the time recorder is read in the client, the work-hours information of each card number is linked with the personal information corresponding to the card number, and the information is registered in a Web server and collectively processed on the server side.