While they represent the same physical moment, the choice of notation depends on the perspective of the time interval:
Many programming languages and digital devices do not allow "24:00:00" as a valid input, automatically defaulting it to "00:00:00" of the next day. 24:00:00
A store open "00:00–24:00" is open for the full 24-hour cycle. While they represent the same physical moment, the
While the US Navy and Marines may use the "24:00" notation, most military communication regulations recommend using 23:59 or 00:01 to avoid any ambiguity regarding which date is being referenced. Format a time or date [complete guide] - Algorithms to Go Format a time or date [complete guide] -
The most recent international standard for time representation has officially disallowed the use of "24" as an hour, favoring "00:00" to represent the beginning of the day.
Used to mark the exact conclusion of the current day. It is the only time where the hour "24" is permitted, and it must be followed by "00" for minutes and seconds. 2. Common Use Cases