When a time keeping apparatus is in a power saving mode, performing time display is stopped, and the apparatus periodically receives a time data from outside and sets the data to a second time counter 98 and an hour-and-minute time counter 99. When the operation mode of the time keeping apparatus is switched from the power saving mode to the display mode, the apparatus resumes to display the current time based on the counted values in the second time counter 98 and the hour and minute time counter 99.
CONTINUING APPLICATION DATA
This application is a continuation-in-part of U.S. patent application Ser. No. 10/652,368 filed Aug. 29, 2003 now abandoned, which is a continuation of U.S. patent application Ser. No. 09/780,143 filed Feb. 9, 2001, now U.S. Pat. No. 6,643,223, the contents of each of which are incorporated herein by reference in their entirety.
