Military Time Converter & 24-Hour Clock Chart

Military Time Conversion Chart

Use this quick-reference chart to convert common whole-hour times between standard AM/PM time and military time. The converter above also handles minutes, so values such as 1830 convert to 6:30 PM.

Common military time conversions

These quick answers cover many of the military-time lookups people make most often. Use the converter above for any minute value, such as 1830, 2015, or 2345.

Common PM times in military time

12 AM and 12 PM in military time

12:00 AM is 0000 military time, while 12:00 PM is 1200 military time. Midnight and noon are the two cases most likely to cause confusion because the 12-hour clock resets at 12 while the 24-hour clock starts the new day at 00:00.

How to convert PM time to military time

For PM times from 1:00 PM through 11:59 PM, add 12 to the hour and keep the minutes unchanged. For example, 2:00 PM becomes 1400, 4:00 PM becomes 1600, 7:00 PM becomes 1900, and 10:00 PM becomes 2200. Noon is the exception: 12:00 PM stays 1200.

How to convert AM time to military time

For 1:00 AM through 11:59 AM, keep the hour and add a leading zero when needed. For example, 1:00 AM becomes 0100 and 7:05 AM becomes 0705. Midnight is the exception: 12:00 AM becomes 0000.

How to Use the Military Time Converter

Choose Military → Regular to enter a 24-hour time such as 1730 or 17:30, or choose Regular → Military to enter a 12-hour time and select AM or PM. The result updates immediately, and the page also shows compact military notation, colon-separated 24-hour time, regular AM/PM time, and minutes after midnight.

The Utiliverse Military Time Converter translates between the 24-hour clock commonly called military time and the 12-hour clock used in everyday AM/PM notation. It works in both directions, so you can enter a military time such as 1730 and see 5:30 PM, or enter a regular time such as 8:15 PM and see 2015.

The converter accepts military time with or without a colon. That means both 1730 and 17:30 are recognized as the same time. In regular-time mode, enter an hour and minutes such as 8:15, then select AM or PM. The result updates immediately in compact military format and standard colon-separated 24-hour format.

How military time works

Military time uses a 24-hour day beginning at 0000 and ending at 2359. The first two digits represent the hour and the last two represent the minutes. Because each hour number occurs only once during the day, there is no need to add AM or PM. For example, 0900 means 9:00 AM, while 2100 means 9:00 PM.

Leading zeros are important in compact military notation. Seven-thirty in the morning is written as 0730 rather than 730 when a four-digit format is expected. The converter automatically pads output to four digits so morning hours remain clear and consistent.

Converting military time to regular time

From 0100 through 1159, the hour usually stays the same and receives an AM label. For example, 0845 becomes 8:45 AM. The special case is midnight: 0000 becomes 12:00 AM. Noon is 1200, which becomes 12:00 PM.

For times from 1300 through 2359, subtract 12 from the hour and use PM. Thus 1300 becomes 1:00 PM, 1545 becomes 3:45 PM, and 2310 becomes 11:10 PM. The minute portion does not change during the conversion.

Converting regular time to military time

For AM times from 1:00 AM through 11:59 AM, keep the hour and add a leading zero when needed. For example, 6:20 AM becomes 0620. The exception is 12:00 AM through 12:59 AM: subtract 12 from the hour, making midnight hour 00, so 12:30 AM becomes 0030.

For PM times from 1:00 PM through 11:59 PM, add 12 to the hour. For example, 4:05 PM becomes 1605 and 9:45 PM becomes 2145. Noon is the exception: 12:00 PM remains 1200 because the 12-hour value already matches the 24-hour noon hour.

Midnight, noon, 0000, and 1200

Midnight and noon cause more conversion mistakes than most other times. Midnight is 12:00 AM in the 12-hour system and 00:00 or 0000 in the 24-hour system. Noon is 12:00 PM and corresponds to 12:00 or 1200. Remembering those two anchor points makes most other conversions straightforward.

You may occasionally see 2400 in schedules or operational documents to indicate the end of a calendar day. It can be useful when describing a boundary, but ordinary 24-hour clock notation runs from 00:00 through 23:59. This converter therefore treats 0000 as midnight and does not accept 2400 as a clock input.

Military time versus civilian 24-hour time

The underlying hours and minutes are the same. The biggest visual difference is formatting. Military contexts commonly write four digits without a colon, such as 1845. Civilian 24-hour clocks often use a colon, such as 18:45. This page also works as a 24-hour time converter: convert 24-hour values to AM/PM or convert AM/PM times back to 24-hour notation. The converter displays both formats so you can move easily between schedules, travel information, healthcare records, logistics, and everyday AM/PM time.

Conversion Methodology and Important Limits

The converter first parses the entered clock time into a 24-hour hour-and-minute pair. From that normalized pair it generates four-digit military notation, colon-separated 24-hour notation, 12-hour AM/PM notation, minutes after midnight, and the highlighted hour in the reference table.

Worked examples around midnight and noon

Compact input is normalized

The military-time parser accepts one to four numeric digits and pads shorter compact entries on the left before interpreting them. For example, 30 becomes 0030 and 930 becomes 0930. Colon input such as 9:30 is also accepted. Output military time is always padded to four digits.

This converter uses minute precision only

Seconds are not accepted or displayed. Inputs such as 17:30:45 are outside the current parser. If you are working with logs, timestamps, aviation records, or scientific data that include seconds, preserve those values separately.

2400 is treated as a day-boundary notation, not a clock input

The calculator accepts normalized clock times from 0000 through 2359. Some schedules use 2400 to label the end of a calendar day, but 2400 and 0000 can refer to opposite sides of a date boundary. Because this tool does not track dates, it intentionally avoids silently converting 2400 to 0000.

No date, time-zone, or UTC-offset conversion

The result changes only the notation used to display the same local clock reading. It does not know a date, location, daylight-saving rule, UTC offset, or military time-zone letter. A value such as 1800 remains the same clock reading; only its display changes to 6:00 PM.

Day-period labels are descriptive only

The Midnight, Morning, Afternoon, Evening, and Night tag is a convenience label generated from the hour. Those labels do not change the conversion result and should not be treated as formal military or scheduling terminology.

Related Utiliverse Tools

Last reviewed: October 13, 2026 · 24-hour parsing, AM/PM conversion, midnight/noon handling, compact-input normalization, copy behavior, and reference-table logic reviewed against the current implementation.

Practical Use Cases

Travel and transportation

Airlines, rail systems, transit schedules, and international timetables frequently use the 24-hour clock. A traveler accustomed to AM/PM notation can quickly convert 18:20 to 6:20 PM or verify that 07:05 means 7:05 AM.

Healthcare and medical records

Hospitals and clinical systems often use 24-hour time because it avoids ambiguity between morning and evening. Converting a chart time such as 2145 to 9:45 PM can make records easier to understand for patients and families while preserving the original time reference.

Military, emergency, and public-safety schedules

Military units, emergency services, dispatch systems, and other operations may use compact 24-hour notation for clarity. The converter can help new personnel, students, family members, or anyone reading such schedules become familiar with the notation.

Work schedules and global teams

Some employers use 24-hour schedules to reduce AM/PM mistakes, especially for overnight shifts. Converting 2230 to 10:30 PM or 0545 to 5:45 AM can make shift start and end times easier to interpret.

Education and practice

The reference table and quick examples make the page useful for learning the pattern. Once you know that afternoon hours generally subtract 12 when moving to regular time—and add 12 when moving to military time—the system becomes easy to use mentally.

Frequently Asked Questions