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Program to convert time from 12 hour to 24 hour format

Last Updated : 19 Mar, 2025

Given a time at 12-hour AM/PM format, convert it to military (24-hour) time. 
Note: Midnight is 12:00:00 AM on a 12-hour clock and 00:00:00 on a 24-hour clock. Noon is 12:00:00 PM on 12-hour clock and 12:00:00 on 24-hour clock

Examples:

Input: 07:05:45 PM
Output: 19:05:45
Explanation: On converting the given time from 12 hour format to 24 hour format we get 19:05:45

Input: 02:15:05 AM
Output: 02:15:05
Explanation: On converting the given time from 12 hour format to 24 hour format we get 02:15:05

Using Conditional Statements


Output
19:05:45

Time Complexity: O(1)
Auxiliary Space: O(1)

Using Library Methods


Output
19:05:45

Time Complexity: O(1)
Auxiliary Space: O(1)

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