Information processing apparatus for updating local time

An information processing apparatus comprising:

• a communication device capable of communicating with an external device and capable of communicating with a clock server via a network, the external device being configured to provide first time information, the clock server being configured to provide second time information relating to a UTC time;
• a first clock configured to measure a first time as a local time;
• a second clock configured to measure a second time relating to the UTC time,
• a storage device configured to store updating information for updating the local time of the first clock based on the second time of the second clock;
• and
• a controller configured to perform:
• updating the second time of the second clock based on the second time information when the second time information is provided from the clock server;
• updating the local time of the first clock based on the second time information and the updating information when the second time of the second clock is updated;
• judging whether the local time of the first clock has been updated based on one of the first time information and the second time information, when the time information is provided from the external device;
• updating the local time based on the first time information provided from the external device when it is judged that the local time has not been updated based on any one of the first time information and the second time information;
• not updating the local time based on the first time information when it is judged that the local time has been updated based on the second time information.