Military Time Calculator - Calculator See


Military Time Calculator

Convert 12-hour AM/PM standard clock time to 24-hour military time, with NATO phonetic pronunciations and military time charts.

Calculator Inputs

12-hour clock.
min
Minutes.
AM/PM.

Calculated Results

24-Hour Military Time
1730 Hours ("Seventeen Thirty")
Standard 12-Hour Format 5:30 PM
NATO Phonetic Time One Seven Three Zero
Hours Elapsed Since Midnight 17.50 Hours
Values calculate live as you adjust inputs.

About Military Time Calculator

Converts between civilian 12-hour AM/PM format and unambiguous 24-hour military time used in emergency response, aviation, and medicine.

What is Military Time Calculator?

Converts between civilian 12-hour AM/PM format and unambiguous 24-hour military time used in emergency response, aviation, and medicine.

How to Use This Calculator

  1. Select hour, minute, and AM/PM.
  2. Instantly read 24-hour military time (e.g. 1730) and pronunciation.

The Mathematical Formula & Variables

PM times add 12 (except 12 PM = 1200); 12 AM midnight = 0000

Step-by-Step Worked Example

Scenario: 5:30 PM civilian clock.

  1. Since it is PM, add 12 to 5: 5 + 12 = 17.
  2. Format minutes: 1730 hours ("Seventeen Thirty").

Result: 1730 Hours

Frequently Asked Questions

How is midnight written in military time?

Midnight is written as 0000 ("Zero Hundred Hours") or 2400 at the end of a day.