Given a time in 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 : A single string containing a time in 12-hour clock format(hh:mm:ss AM or hh:mm:ss PM where 01 <= hh <= 12 or 01 <= mm,ss <= 59 Output :Convert and print the given time in 24-hour format, where 00 <= hh <= 23 Input : 07:05:45PM Output : 19:05:45
C++
// C++ program to convert 12 hour to 24 hour // format #include<iostream> using namespace std; void print24(string str) { // Get hours int h1 = ( int )str[1] - '0' ; int h2 = ( int )str[0] - '0' ; int hh = (h2 * 10 + h1 % 10); // If time is in "AM" if (str[8] == 'A' ) { if (hh == 12) { cout << "00" ; for ( int i=2; i <= 7; i++) cout << str[i]; } else { for ( int i=0; i <= 7; i++) cout << str[i]; } } // If time is in "PM" else { if (hh == 12) { cout << "12" ; for ( int i=2; i <= 7; i++) cout << str[i]; } else { hh = hh + 12; cout << hh; for ( int i=2; i <= 7; i++) cout << str[i]; } } } // Driver code int main() { string str = "07:05:45PM" ; print24(str); return 0; } |
Java
// Java program to convert 12 hour // format to 24 hour format class GFG { static void print24(String str) { // Get hours int h1 = ( int )str.charAt( 1 ) - '0' ; int h2 = ( int )str.charAt( 0 ) - '0' ; int hh = (h2 * 10 + h1 % 10 ); // If time is in "AM" if (str.charAt( 8 ) == 'A' ) { if (hh == 12 ) { System.out.print( "00" ); for ( int i = 2 ; i <= 7 ; i++) System.out.print(str.charAt(i)); } else { for ( int i = 0 ; i <= 7 ; i++) System.out.print(str.charAt(i)); } } // If time is in "PM" else { if (hh == 12 ) { System.out.print( "12" ); for ( int i = 2 ; i <= 7 ; i++) System.out.print(str.charAt(i)); } else { hh = hh + 12 ; System.out.print(hh); for ( int i = 2 ; i <= 7 ; i++) System.out.print(str.charAt(i)); } } } // Driver code public static void main (String[] args) { String str = "07:05:45PM" ; print24(str); } } // This code is contributed by Anant Agarwal. |
Python3
# Python3 program to convert 12 # hour to 24 hour format def print24(s): # Get hours h1 = ord (s[ 1 ]) - ord ( '0' ) h2 = ord (s[ 0 ]) - ord ( '0' ) hh = (h2 * 10 + h1 % 10 ) # If time is in "AM" if (s[ 8 ] = = 'A' ): if (hh = = 12 ): print ( '00' , end = '') for i in range ( 2 , 8 ): print (s[i], end = '') else : for i in range ( 0 , 8 ): print (s[i], end = '') # If time is in "PM" else : if (hh = = 12 ): print ( "12" , end = '') for i in range ( 2 , 8 ): print (s[i], end = '') else : hh = hh + 12 ; print (hh, end = '') for i in range ( 2 , 8 ): print (s[i], end = '') # Driver code if __name__ = = "__main__" : s = "07:05:45PM" print24(s) # This code is contributed by rutvik_56 |
C#
// C# program to convert 12 hour // format to 24 hour format using System; class GFG { static void print24(String str) { // Get hours int h1 = ( int )str[1] - '0' ; int h2 = ( int )str[0] - '0' ; int hh = (h2 * 10 + h1 % 10); // If time is in "AM" if (str[8] == 'A' ) { if (hh == 12) { Console.Write( "00" ); for ( int i = 2; i <= 7; i++) Console.Write(str[i]); } else { for ( int i = 0; i <= 7; i++) Console.Write(str[i]); } } // If time is in "PM" else { if (hh == 12) { Console.Write( "12" ); for ( int i = 2; i <= 7; i++) Console.Write(str[i]); } else { hh = hh + 12; Console.Write(hh); for ( int i = 2; i <= 7; i++) Console.Write(str[i]); } } } // Driver code public static void Main(String[] args) { String str = "07:05:45PM" ; print24(str); } } // This code is contributed by Rajput-Ji |
Output:
19:05:45
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