The 24-hour clock means that a day is divided into 24 hours, starting at 12 midnight, instead of being divided into 12 hours. Many countries and regions in the world adopt this time calculation method, such as the United States, Canada and Australia.

Compared with 12-hour system, using 24-hour system saves time and corrects misunderstanding, because the relative time of morning and evening in 12-hour system is different. Using the 24-hour clock helps people understand the accuracy and accuracy of time.

The 24-hour system can bring many benefits in daily life. For example, when arranging your travel schedule, using the 24-hour system can avoid any misunderstanding and ensure that you travel according to the correct schedule. In addition, it can help you plan your work and life accurately and ensure the efficient use of time.