24:00:00

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

The "24:00:00" format is most frequently found in environments where a day's end must be clearly defined: 24:00:00

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. Used to mark the exact conclusion of the current day

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. 24:00:00