A time recorder includes a radio wave clock having a receiving controller for regularly executing a receiving operation of a standard time wave. The radio wave clock automatically corrects the current time based on the time data of the standard time wave on successful reception of the standard time wave. The time recorder further includes: a storing device for storing the time of successful reception of the standard time wave; and a receiving schedule setting device that assumes the time zone around the successful receiving time as the next receiving trial time zone. Preferably, the time recorder includes: a receiving operation indicator for indicating the receiving operation of the standard time wave; an input level indicator for indicating reception of the standard time wave during the receiving operation; and a controller for varying the blinking interval of said input level indicator depending on the input level.