12-Hour to 24-Hour Military Time Converter
Convert seamlessly between standard 12-hour AM/PM clock time, 24-hour time, and military time notation.
12-Hour → 24-Hour & Military
24-Hour / Military → 12-Hour
Military Time Reference Chart
| 12-Hour Standard | 24-Hour Format | Military Time | Pronunciation Guide |
|---|---|---|---|
| 12:00 AM | 00:00 | 0000 | Zero Zero Hundred Hours |
| 1:00 AM | 01:00 | 0100 | Zero One Hundred Hours |
| 2:00 AM | 02:00 | 0200 | Zero Two Hundred Hours |
| 3:00 AM | 03:00 | 0300 | Zero Three Hundred Hours |
| 4:00 AM | 04:00 | 0400 | Zero Four Hundred Hours |
| 5:00 AM | 05:00 | 0500 | Zero Five Hundred Hours |
| 6:00 AM | 06:00 | 0600 | Zero Six Hundred Hours |
| 7:00 AM | 07:00 | 0700 | Zero Seven Hundred Hours |
| 8:00 AM | 08:00 | 0800 | Zero Eight Hundred Hours |
| 9:00 AM | 09:00 | 0900 | Zero Nine Hundred Hours |
| 10:00 AM | 10:00 | 1000 | Ten Hundred Hours |
| 11:00 AM | 11:00 | 1100 | Eleven Hundred Hours |
| 12:00 PM | 12:00 | 1200 | Twelve Hundred Hours |
| 1:00 PM | 13:00 | 1300 | Thirteen Hundred Hours |
| 2:00 PM | 14:00 | 1400 | Fourteen Hundred Hours |
| 3:00 PM | 15:00 | 1500 | Fifteen Hundred Hours |
| 4:00 PM | 16:00 | 1600 | Sixteen Hundred Hours |
| 5:00 PM | 17:00 | 1700 | Seventeen Hundred Hours |
| 6:00 PM | 18:00 | 1800 | Eighteen Hundred Hours |
| 7:00 PM | 19:00 | 1900 | Nineteen Hundred Hours |
| 8:00 PM | 20:00 | 2000 | Twenty Hundred Hours |
| 9:00 PM | 21:00 | 2100 | Twenty One Hundred Hours |
| 10:00 PM | 22:00 | 2200 | Twenty Two Hundred Hours |
| 11:00 PM | 23:00 | 2300 | Twenty Three Hundred Hours |
The 12-Hour to 24-Hour Military Time Converter provides instant bidirectional translation between civilian 12-hour AM/PM notation and 24-hour military or railway time. Used worldwide in aviation, healthcare, emergency services, logistics, and armed forces, military time eliminates ambiguity between day and night hours by numbering hours continuously from 00:00 (midnight) to 23:59.
How to Use the Military Time Converter
- To convert 12-hour to 24-hour: Enter the hour (1–12), minutes (0–59), and select AM or PM in the left conversion card.
- View the generated 24-hour time (e.g. 19:30), the 4-digit military format (1930 hours), and the spoken phonetic pronunciation ("Nineteen Thirty Hours").
- To convert 24-hour to 12-hour: Enter any 24-hour time (00:00 to 23:59) into the right conversion card to view its 12-hour AM/PM equivalent.
- Refer to the 24-hour conversion reference table below for a side-by-side comparison of every standard hour of the day.
Key Features & Precision
Bidirectional Real-Time Conversion
Convert 12-hour to 24-hour and 24-hour to 12-hour simultaneously with instant visual feedback.
Military Phonetic Pronunciation
Displays standard spoken military phrasing for any hour (such as "Zero Eight Hundred" for 0800 or "Twenty-One Hundred" for 2100).
Comprehensive 24-Hour Reference Table
Provides a complete 24-hour reference chart comparing standard civilian time, 24-hour notation, and military formatting.
Midnight & Noon Clarification
Clearly differentiates 12:00 AM (0000 hours / start of day) from 12:00 PM (1200 hours / midday).
Common Use Cases
Healthcare & Nursing Shifts
Accurately record patient medication administration, chart notes, and vital checks in standard hospital 24-hour time.
Aviation & Pilot Flight Plans
Coordinate flight departures, pilot logs, and air traffic control schedules free of AM/PM confusion.
International Travel & Railways
Decode European, Asian, and military train and flight timetables formatted in 24-hour increments.
Frequently Asked Questions
What is 12:00 AM in military time?
12:00 AM (midnight) is written as 0000 in military time (or 00:00 in 24-hour notation) and spoken as "Zero Hundred Hours" or "Zero Zero Hundred Hours".
What is the difference between 24-hour time and military time?
24-hour time typically includes a colon between hours and minutes (e.g., 18:30). Military time omits the colon (e.g., 1830), uses leading zeros for single-digit hours (e.g., 0700), and is pronounced without the word "o'clock".
Is 2400 hours valid military time?
While 2400 is sometimes informally used to designate the exact end of a day, international standards (ISO 8601) and military regulations designate midnight as 0000 (the beginning of the new calendar day).