When converting from AM/PM to military time or to 24-hour time, you just need to change the hour values while minute values remain the same. So, if the hour value has only 1 digit, the clock shows only 1 digit. Keep in mind that the 12-hour format is the one that appears on a actual watch that you wear on your wrist. The math to convert from AM/PM (12-hour clock) to 24-hour clock is the same explained above for military time with small diferences in the way we write or spell the time. For example: 2:00 PM = (2 + 12):00 = 1400, 5:30 PM = (5 + 12):30 = 1730, 11:59 PM = (11 + 12) = 2359 in military time.Īfter 23:59 PM the 12-hour clock turns to 12:00 AM which corresponds to midnight, at which point military time is reset to 0000 (the beginning of the day) and the process continues. Within these intervals above the hours and minutes remain the same.Īfter and including 1:00 PM until 11:59 PM, you should add 12 to the hours to make the corresponding military time. After 12:59 AM the 12-hour clock jumps to 1:00 AM = 0100 in military time. It starts at 0000, which corresponds to 12:00 AM.

Military time or 12-hour military notation consists always of four digits. In military time the day runs from midnight to midnight and is divided into 24 hours from 00:00 (midnight) to 23:59. In 12-hour clock or 12-hour time notation the day is split into two 12-hour periods running from midnight (12:00 AM) to noon (12:00 PM), and noon to midnight. The first one is the 12-hour clock which uses AM and PM, and the other is the 24-hour clock. There are two main methods of displaying the time. People do not have to figure out if noon is 00h00, 24h or 12h to calculate duration.How to convert time from 12-hour clock to 24-hour clock and to military time.

7 o'clock in the evening is called 19:00. Fewer confusions between morning and evening e.g.To write shop opening hours until midnight use, for example, '00:00–24:00', '07:00–24:00'.Īdvantages over the 12-hour clock system: For example, a train due to arrive at a station during the last minute of a day arrives at 24:00 but trains which depart during the first minute of the day go at 00:00. In railway timetables 24:00 means the end of the day. Many digital wristwatches and clocks can display the time of day using the 24-hour clock. In many African, Asian, European and Latin American countries people use it to write the time. military prefers not to say 24:00 - they do not like to have two names for the same thing, so they always say '23:59', which is one minute before midnight.Ģ4-hour clock time is used in computers, by the militaries, for public safety, and in transport. For example, you would say 'Tuesday at 24:00' and 'Wednesday at 00:00' to mean exactly the same time.

Midnight is called 24:00 and is used to mean the end of the day and 00:00 is used to mean the beginning of the day. Under the 24-hour clock system, the day begins at midnight, 00:00, and the last minute of the day begins at 23:59 and ends at 24:00, which is identical to 00:00 of the following day. Numbers under 10 have a zero in front (called a leading zero) e.g. Also, the international standard notation of time ( ISO 8601) is based on this format.Ī time in the 24-hour clock is written in the form hours:minutes (for example, 01:23), or hours: minutes: seconds (01:23:45). In some parts of the world, it is called railway time. This system is also referred to (only in the United States and the English speaking parts of Canada) as military time or (only in the United Kingdom and now very rarely) as continental time. The 24-hour clock is a way of telling the time in which the day runs from midnight to midnight and is divided into 24 hours, numbered from 0 to 23.

Convert time to 24 hour clock