| 摘要 |
PROBLEM TO BE SOLVED: To enhance the operation efficiency of time adjustment of an electronic clock. SOLUTION: An analog electronic clock 10 has a receiving circuit 21 for receiving an adjustment mode release signal of an external adjustment device 30, and a mode control circuit 22. The mode control circuit 22 causes time measurement to take place, when the receiving circuit 21 receives the adjustment mode release signal of the external adjustment device 30. |
