With military time, the hours are numbered from 00 to 23. Minutes and seconds are expressed exactly the same way with military and regular time. It is not necessary to change anything regarding minutes and second when one switches from military time to regular time and vice versa. Below you can find a calculator to convert standard time to military time, military time charts and a printable version of the military time charts. You can convert military time to civilian time for numbers after noon by subtracting 12 from the number. For example, if it’s 1800 hours in military time, you’d subtract 12 from 18 and get six. Although it is often used as a synonym for the 24-hour clock, and the two are closely related, they are not the same. The 24-hour clock is the world’s most widely used time format, while military time is only used in some contexts, such as the military and emergency services. Prior to joining the armed forces, it’s possible that you didn’t have the time of day for understanding military time or why it even exists, never mind adopting its use. Here are some rules for converting between the different time formats. Use a 12-hour military time format to convert 1800 military time to 12-hour time format. When speaking military time, you will always see four digits. You should read them as two pairs in order from left to right. The first two digits are for “hours”, and the remaining two are for “minutes”. To avoid confusion when discussing times and dates across time zones, the military uses the Greenwich Mean Time (GMT). Greenwich Mean Time (GMT) is a 24-hour time-keeping system, which uses the earth’s prime meridian located near Greenwich, England, as its center. This allows military personnel to converse about a specific time based on the same time zone foundation.