Electronic apparatus and printer having clock functions and control program for the same electronic apparatus stored in computer-readable medium

An electronic apparatus having clock functions, comprising:

• a time measurement device that measures time;
• a time display device that displays time measured by the time measurement device;
• and
• a control device that:
• identifies an environment in which the electronic apparatus is to be used;
• selects either the 12-hour system or the 24-hour system for time display based on the service environment identified;
• and
• causes the time display device to display the time measured by the time measurement device in accordance with the hour system selected.

A control program for an electronic apparatus having clock functions which is stored in a computer-readable medium, comprising:

• a time measurement step of measuring time;
• a service environment identification step of identifying an environment in which the electronic apparatus is to be used;
• an hour system selection step of selecting either the 12-hour system or the 24-hour system for time display based on the service environment identified by the service environment identification step;
• and
• a time display control step of causing the time measured by the time measurement step to be displayed in accordance with the hour system selected by the hour system selection step.