Midnight 00:00 and 24:00
In the 24-hour time notation, the day begins at midnight, 00:00 or 0:00, and the last minute of the day begins at 23:59.
Military time is a way to tell time using 24 hours. The day starts at 0 hours and ends at 24 hours. In the United States, we use a 12-hour clock. The 12-hour clock runs from 1:00 A.M. to 12 noon and then from 1:00 P.M. to 12 midnight.
5:00 PM equals 17:00.
While saying “oh” for “zero” (“Be there at 'oh six hundred!' ”) is colloquial and often seen in movies and TV, saying “zero” is a part of military communication protocol.
Another convention sometimes used is that, since 12 noon is by definition neither ante meridiem (before noon) nor post meridiem (after noon), then 12am refers to midnight at the start of the specified day (00:00) and 12pm to midnight at the end of that day (24:00).
Putting it to practice…
12:30 AM military time is 0030, pronounced as “zero zero thirty hours”.
19:00 = 7:00 PM.
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. For example, you would say "Tuesday at 24:00" and "Wednesday at 00:00" to mean exactly the same time.
Since military time and regular time use minutes in exactly the same way, no conversion is required. Thus, 0001 military time translates to 12:01 a.m. or one minute past midnight regular time.
If it's 11:59 PM, in 1 minute it would be 12:00 AM. AM refers to the beginning of the day, and PM refers to the end of the day. If you use 24:00, you would be referring to the end of the day (PM), and 12:00 PM is not at night. So use 00:00.
Alternatively, you could use the 24-hour clock system, where 12:00 is noon and 00:00 (or 24:00) is midnight.
21:00 = 9:00 PM
21:00 on a 24-hour clock is is 9:00 PM on a 12-hour clock.
22:00 on a 24-hour clock is is 10:00 PM on a 12-hour clock.
2130 = 9:30 PM
What time is 2130 Hours in Military Time? 9:30 PM in regular time on a 12-hour clock.
In 24-hour (military) time, 12:00am is equal to 0000 and is read as “0 hundred hours”.
17:00 on a 24-hour clock is is 5:00 PM on a 12-hour clock.
What time is 1730 Hours in Military Time? 5:30 PM in regular time on a 12-hour clock.
Conclusion. So, now you know that the answer to “Is military time midnight 2400 or 0000?” is 0000. Though it is also a matter of preference. 2400 can also be used to indicate that it is midnight in military time, but it is less popular and more frequently used to refer to the end of a day.
0050 = 12:50 AM
What time is 0050 Hours in Military Time? 12:50 AM in regular time on a 12-hour clock.
What time is 0200 Hours in Military Time? 2:00 AM in regular time on a 12-hour clock.