Military Time Converter

Convert between 12-hour clock time and 24-hour military time.

100% Free No Sign-Up Calculated in Your Browser

Direction

12-hour time (e.g. 02:30 PM)

24-hour time (e.g. 1430)

Result

Enter values to calculate.

Summary

Waiting for input

Detail

Waiting for input

Convert between 12-hour clock time and 24-hour military time.

How It Works

How Military Time Converter Works

Military (24-hour) time simply counts hours from 0 to 23 without needing AM or PM — converting from 12-hour time adds 12 to any PM hour (except 12 PM itself, which becomes 12), and converting back reverses that adjustment.

Real-World Use Cases

Who Uses Military Time Converter and Why

Converting a 12-hour appointment or flight time into 24-hour military time for a form, schedule, or international context that expects it.
Translating a 24-hour time from a military schedule, European timetable, or technical system back into familiar AM/PM format.
Double-checking a time written in an unfamiliar format before entering it somewhere accuracy matters, like a booking or shift schedule.
Avoiding AM/PM mix-ups when coordinating a time with someone using the 24-hour format.

Common Mistakes

Mistakes to Avoid

Assuming 12 AM converts to 12:00 in 24-hour time — midnight is actually 00:00, the one case where the two systems don't line up intuitively.
Forgetting that 12 PM (noon) stays as 12 in 24-hour time rather than becoming 00 or 24 — only PM hours other than 12 get 12 added to them.
Entering the time in the wrong field for the conversion direction selected, mixing up the 12-hour and 24-hour input fields.

Pro Tips

Tips for Best Results

Remember the midnight/noon special cases specifically — they're the two spots where the conversion isn't just "add or subtract 12."
Match your input to the placeholder format shown (like "02:30 PM" or "1430") to avoid a misread value.

Troubleshooting

Fixing Common Problems

Midnight converted to 12:00 instead of 00:00. — This shouldn't happen with a correct conversion — 12 AM (midnight) is 00:00 in 24-hour time; if you entered the time manually rather than through the field, double check it against this rule.

Noon converted incorrectly. — 12 PM (noon) stays as 12 in 24-hour time — it's the one PM hour that doesn't get 12 added to it, since it's already 12.

Glossary

Terms Explained

Military time: Another name for 24-hour time, which counts hours from 00 to 23 without needing an AM or PM label.

FAQ

Frequently Asked Questions

Why does 12 AM become 00 and not 12?

Midnight is the very start of the day in 24-hour time, so it's represented as 00:00 — this is the one case where 12-hour and 24-hour numbering don't line up intuitively, which is exactly why it trips people up most often.