With military time, the day starts at hours and ends at 24 hours. Designation, just the one 24-hour period that occurs once a day. It’s used to avoid any confusion with the a.m./p.m. It’s almost impossible to get the time wrong when you use military time. OnTheClock simplifies the time-conversion process by eliminating the need to convert times manually. Our time clock has the ability to display time in either a 12-hour or 24-hour format — one of our many customizable features designed to meet your needs. Your first 30 days of OnTheClock are free — get started today. The history of military time can be dated back to the Early Egyptians in the 11th Dynasty. The first appearance of a 24-hour clock was found on a coffin lid which is famously known as the Diagonal Star Table. The Egyptians synchronized the time system with certain patterns of constellations that passed through the sky at night. This system was defined by the different amounts of light intensity that was present during the day and season. The constellation patterns would eventually develop into a year with 360 days. It’s 2300 hours here in Oklahoma and it’s time to turn in and begin the day tomorrow at 0630. Now go forth and never be flummoxed by military time again. There are other time zones that the military references, but Zulu is the most common. Familiarizing oneself with military time and using military time converter tools can enhance communication, coordination, and scheduling across different situations. Twice a year, you'll need to factor in Daylight Saving Time (DST), in which many countries adjust their clocks. Each country determines its specific time change procedures. These clock adjustments are made in the spring and fall, usually from mid-to-late-March and late-October to early November.