How is time always expressed in the 24-hour clock system?

In the 24-hour clock system, time is represented in four figures that consist of two digits for the hour and two digits for the minutes. This format ranges from 0000 to 2359, eliminating the need for 'a.m.' or 'p.m.' which are used in the 12-hour clock system. This method of expression provides clarity and reduces confusion, particularly in contexts such as aviation and military operations where precise timing is crucial.

For example, 1300 signifies 1:00 PM, and this straightforward representation eliminates any ambiguity that might arise from the use of 'a.m.' or 'p.m.'. Whether it is 0900 (9:00 AM) or 2200 (10:00 PM), the time is distinctly noted in a uniform manner suitable for international standards.