PURPOSE: A diary for managing time is provided to numerically monitor the change of personal life by converting a management result into a grade in order to form a statistical data. CONSTITUTION: A daily time-management part(21) is arranged in the internal part of a diary. A daily time resource recording part(211), a daily reviewing resource recording part(213), a daily promoting resource recording part(215), a daily evaluating resource recording part(217), and a daily intellectual data-base recording part(219) are arranged in the daily time-management part.
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