# Time Conversion | HackerRank Solution

Hello coders, today we are going to solve Time Conversion HackerRank Solution which is a Part of HackerRank Algorithm Series.

Contents

Given a time in 12-hour AM/PM format, convert it to military (24-hour) time.

Note: – 12:00:00AM on a 12-hour clock is 00:00:00 on a 24-hour clock.
– 12:00:00PM on a 12-hour clock is 12:00:00 on a 24-hour clock.

Example

• s = ’12:01:00PM’
Return ’12:01:00′.
• s = ’12:01:00AM’
Return ’00:01:00′.

Function Description

Complete the timeConversion function in the editor below. It should return a new string representing the input time in 24 hour format.

timeConversion has the following parameter(s):

• string s: a time in 12 hour format

Returns

• string: the time in 24 hour format

## Input Format

A single string s that represents a time in 12-hour clock format (i.e.: hh:mm:ssAM or hh:mm:ssPM).

## Constraints

• All input times are valid

Sample Input 0

``07:05:45PM``

Sample Output 0

``19:05:45``

## Solution – Time Conversion

### C++

```#include<iostream>
#include<cstdio>

using namespace std;

int main() {
string s;
cin >> s;

int n = s.length();
int hh, mm, ss;
hh = (s - '0') * 10 + (s - '0');
mm = (s - '0') * 10 + (s - '0');
ss = (s - '0') * 10 + (s - '0');

if (hh < 12 && s == 'P') hh += 12;
if (hh == 12 && s == 'A') hh = 0;

printf("%02d:%02d:%02d\n", hh, mm, ss);

return 0;
}```

### Python

```import os
import sys

def timeConversion(s):
time = s.split(":")
if s[-2:] == "PM":
if time != "12":
time = str(int(time)+12)
else:
if time == "12":
time = "00"
ntime = ':'.join(time)
return str(ntime[:-2])

if __name__ == '__main__':
f = open(os.environ['OUTPUT_PATH'], 'w')

s = input()

result = timeConversion(s)

f.write(result + '\n')

f.close()```

Disclaimer: The above Problem (Time Conversion) is generated by Hacker Rank but the Solution is Provided by CodingBroz. This tutorial is only for Educational and Learning Purpose.