![]() People in militaries are likely to be communicating across time zones, coordinating sensitive activities, and performing highly time-sensitive tasks. The military also uses 24 hour clocks because of the large number of problems that could be caused by confusion about time. If you have employees who earn an hourly wage and you enter minutes as well as hours, use this chart to convert minutes to decimals. Further, usage is common in hospitals because a mistake as to when an operation is to be performed or medicine is to be given could be lethal, so using it is a precaution. Note that midnight in the 24-hour clock can also be written as 24:00. Below is a table that shows the progress of time over the course of a day in both the 24 and 12-hour clocks. Night that lasts all day can be extremely disorienting, and the same goes for daylight, so they need this method of keeping time to really know what time it is. The period from 12 AM to 12 PM is the first half of the day, and the period from 12 PM to 12 AM is the second half of the day. For example, Polar explorers and scientists usually use the 24 hour clock because the Sun’s presence in the sky is either attenuated or prolonged beyond what people are used to. Knowing how to read Military Time is critical for people in these situations. ![]() However, the advent of the equinoctial hour was critical to the advancement of astronomy elsewhere.Ĭontemporary purposes for using Military Time are generally situations where a mistake as to the time of an event can have disastrous consequences, or where there is an impediment to observation about where the sun is. For a long time after the equinoctial hour was created, laypersons continued to use temporal hours in their everyday lives. The length of the hour, 60 minutes, was determined during the equinox, when the periods of day and night are equal. These were hours that were equal in length regardless of the season. Some time between 147 and 127 BCE, the astronomer Hipparchus, developed the idea of equinoctial hours. The system was sufficient for measuring seasonal shifts and events that took place over long periods of time, but its usefulness was limited to measuring celestial events that occur every day. To account for this, the actual length of time that the unit “hour” lasted for was altered so that day and night had equal hours. Temporal hours reflect the differing amounts of daylight present during different seasons. In those early days, that method of tracking time made use of what are called temporal hours. Their system evolved around the time it took certain constellations to pass through the sky, eventually giving rise to a 360 day year. Below are ways to convert 11:44 through a time chart, automated converter, and how to convert the 24 hour clock into a 12-hour AM/PM system by hand. However, it was the Egyptians who were the first to use the 24 hour time period. This system is used throughout the world (not just the military) and leverages a 24-hour time clock rather than the 12-hour AM/PM system known to most English speaking countries. Other time keeping systems were in use prior to this period, and continued to be used in the rest of the world for a considerable amount of time after the end of the old Egyptian civilization. The beginning of the 24 hour clock is rooted in Early Egyptian Culture.
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