Satellite radiowave receiving device, electronic timepiece, control method for obtaining positioning information, and recording medium

A control method for obtaining positioning information using a receiver performing a receiving operation of radiowaves transmitted from a positioning satellite, the method comprising:

• controlling a positioning timing involving a positioning operation within at least a predetermined maximum positioning interval from a last positioning operation using preliminarily obtained date and time information and valid positional information on the positioning satellite to obtain a current position of the satellite radiowave receiving device and date and time information;
• and
• controlling an obtaining timing of date and time information involving causing the receiver to perform the receiving operation within at least a predetermined date and time updating interval shorter than the predetermined maximum positioning interval from a last time when date and time information is obtained from radiowaves transmitted from a positioning satellite to obtain date and time information without the positioning operation.

A recording medium containing a program readable from a computer including a receiver performing a receiving operation of radiowaves transmitted from a positioning satellite, wherein the program causes the computer to:

• control a positioning timing involving a positioning operation within at least a predetermined maximum positioning interval from a last positioning operation using preliminarily obtained date and time information and valid positional information on the positioning satellite to obtain a current position of the satellite radiowave receiving device and date and time information;
• and
• control an obtaining timing of date and time information involving causing the receiver to perform the receiving operation within at least a predetermined date and time updating interval shorter than the predetermined maximum positioning interval from a last time when date and time information is obtained from radiowaves transmitted from a positioning satellite to obtain date and time information without the positioning operation.