Convert given time into words

Last Updated : 16 Feb, 2023

Given a time in the format of hh:mm (12-hour format) 0 < hh < 12, 0 <= mm < 60. The task is to convert it into words as shown:
Examples :

Input : h = 5, m = 0
Output : five o' clock

Input : h = 6, m = 24
Output : twenty four minutes past six

Corner cases are m = 0, m = 15, m = 30 and m = 45.

6:00 six o'clock
6:10 ten minutes past six
6:15 quarter past six
6:30 half past six
6:45 quarter to seven
6:47 thirteen minutes to seven

The idea is to use the if-else-if statement to determine the time in words. According to the above-given example, on the basis of minutes, we can categorize time in words into 8, which are minutes equal to 0, 15, 30, 45, 1, 59, and in a range less than 30 or greater than 30. Check the value of minutes and print accordingly.
Below is the implementation of this approach:

C++

// C++ program to convert time into words
#include <bits/stdc++.h>
using namespace std;

// Print Time in words.
void printWords(int h, int m)
{
    char nums[][64] = { "zero", "one", "two", "three", "four",
                        "five", "six", "seven", "eight", "nine",
                        "ten", "eleven", "twelve", "thirteen",
                        "fourteen", "fifteen", "sixteen", "seventeen",
                        "eighteen", "nineteen", "twenty", "twenty one",
                        "twenty two", "twenty three", "twenty four",
                        "twenty five", "twenty six", "twenty seven",
                        "twenty eight", "twenty nine",
                      };

    if (m == 0)
        printf("%s o' clock\n", nums[h]);

    else if (m == 1)
        printf("one minute past %s\n", nums[h]);

    else if (m == 59)
        printf("one minute to %s\n", nums[(h % 12) + 1]);

    else if (m == 15)
        printf("quarter past %s\n", nums[h]);

    else if (m == 30)
        printf("half past %s\n", nums[h]);

    else if (m == 45)
        printf("quarter to %s\n", nums[(h % 12) + 1]);

    else if (m <= 30)
        printf("%s minutes past %s\n", nums[m], nums[h]);

    else if (m > 30)
        printf("%s minutes to %s\n", nums[60 - m],
                                     nums[(h % 12) + 1]);
}

// Driven Program
int main()
{
    int h = 6;
    int m = 24;

    printWords(h, m);
    return 0;
}

Java

// Java program to convert time into words
public class GFG
{
    
    // Print Time in words.
    static void printWords(int h, int m)
    {
        String nums[] = { "zero", "one", "two", "three", "four",
                            "five", "six", "seven", "eight", "nine",
                            "ten", "eleven", "twelve", "thirteen",
                            "fourteen", "fifteen", "sixteen", "seventeen",
                            "eighteen", "nineteen", "twenty", "twenty one",
                            "twenty two", "twenty three", "twenty four",
                            "twenty five", "twenty six", "twenty seven",
                            "twenty eight", "twenty nine",
                        };
    
        if (m == 0)
            System.out.println(nums[h] + " o' clock ");
    
        else if (m == 1)
            System.out.println("one minute past " + 
                                            nums[h]);
    
        else if (m == 59)
            System.out.println("one minute to " + 
                            nums[(h % 12) + 1]);
    
        else if (m == 15)
            System.out.println("quarter past " + nums[h]);
    
        else if (m == 30)
            System.out.println("half past " + nums[h]);
    
        else if (m == 45)
            System.out.println("quarter to " + 
                                nums[(h % 12) + 1]);
    
        else if (m <= 30)
            System.out.println( nums[m] + " minutes past " +
                                                    nums[h]);
    
        else if (m > 30)
            System.out.println( nums[60 - m] + " minutes to " +     
                                                nums[(h % 12) + 1]);
    }
    
    // Driven code
    public static void main(String []args)
    {
        int h = 6;
        int m = 24;
        printWords(h, m);
    }
}

// This code is contributed by ihritik

Python3

# Python3 program to convert 
# time into words

# Print Time in words.
def printWords(h, m):
    nums = ["zero", "one", "two", "three", "four",
            "five", "six", "seven", "eight", "nine",
            "ten", "eleven", "twelve", "thirteen",
            "fourteen", "fifteen", "sixteen", 
            "seventeen", "eighteen", "nineteen", 
            "twenty", "twenty one", "twenty two", 
            "twenty three", "twenty four", 
            "twenty five", "twenty six", "twenty seven",
            "twenty eight", "twenty nine"];

    if (m == 0):
        print(nums[h], "o' clock");

    elif (m == 1):
        print("one minute past", nums[h]);

    elif (m == 59):
        print("one minute to", nums[(h % 12) + 1]);

    elif (m == 15):
        print("quarter past", nums[h]);

    elif (m == 30):
        print("half past", nums[h]);

    elif (m == 45):
        print("quarter to", (nums[(h % 12) + 1]));

    elif (m <= 30):
        print(nums[m],"minutes past", nums[h]);

    elif (m > 30):
        print(nums[60 - m], "minutes to", 
              nums[(h % 12) + 1]);

# Driver Code
h = 6;
m = 24;

printWords(h, m);

# This code is contributed 
# by Princi Singh

// C# program to convert time into words
using System;

class GFG
{
    
    // Print Time in words.
    static void printWords(int h, int m)
    {
        string [] nums = { "zero", "one", "two", "three", "four",
                            "five", "six", "seven", "eight", "nine",
                            "ten", "eleven", "twelve", "thirteen",
                            "fourteen", "fifteen", "sixteen", "seventeen",
                            "eighteen", "nineteen", "twenty", "twenty one",
                            "twenty two", "twenty three", "twenty four",
                            "twenty five", "twenty six", "twenty seven",
                            "twenty eight", "twenty nine",
                        };
    
        if (m == 0)
            Console.WriteLine(nums[h] + " o' clock ");
    
        else if (m == 1)
            Console.WriteLine("one minute past " + nums[h]);
    
        else if (m == 59)
            Console.WriteLine("one minute to " +
                                nums[(h % 12) + 1]);
    
        else if (m == 15)
            Console.WriteLine("quarter past " + nums[h]);
    
        else if (m == 30)
            Console.WriteLine("half past " + nums[h]);
    
        else if (m == 45)
            Console.WriteLine("quarter to " + 
                                nums[(h % 12) + 1]);
    
        else if (m <= 30)
            Console.WriteLine( nums[m] + " minutes past " +
                                                    nums[h]);
    
        else if (m > 30)
            Console.WriteLine( nums[60 - m] + " minutes to " + 
                                            nums[(h % 12) + 1]);
    }
    
    // Driven code
    public static void Main()
    {
        int h = 6;
        int m = 24;
        printWords(h, m);
    }
}

// This code is contributed by ihritik

PHP

<?php
// PHP program to convert 
// time into words

// Print Time in words.
function printWords($h, $m)
{
    $nums = array("zero", "one", "two", "three", "four",
                  "five", "six", "seven", "eight", "nine",
                  "ten", "eleven", "twelve", "thirteen",
                  "fourteen", "fifteen", "sixteen", "seventeen",
                  "eighteen", "nineteen", "twenty", "twenty one",
                  "twenty two", "twenty three", "twenty four",
                  "twenty five", "twenty six", "twenty seven",
                  "twenty eight", "twenty nine");

    if ($m == 0)
        echo $nums[$h], 
             "o' clock\n" ;

    else if ($m == 1)
        echo "one minute past ", 
                $nums[$h], "\n";

    else if ($m == 59)
        echo "one minute to ", 
             $nums[($h % 12) + 1], "\n";

    else if ($m == 15)
        echo "quarter past ", 
             $nums[$h], "\n";

    else if ($m == 30)
        echo "half past ", 
           $nums[$h],"\n";

    else if ($m == 45)
        echo "quarter to ", 
             ($nums[($h % 12) + 1]), "\n";

    else if ($m <= 30)
        echo $nums[$m], 
             " minutes past ", 
               $nums[$h],"\n";

    else if ($m > 30)
        echo $nums[60 - $m],
             " minutes to ", 
             $nums[($h % 12) + 1], "\n";
}

// Driver Code
$h = 6;
$m = 24;

printWords($h, $m);

// This code is contributed by aj_36
?>

JavaScript

<script>
    // Javascript program to convert time into words
    
    // Print Time in words.
    function printWords(h, m)
    {
        let nums = [ "zero", "one", "two", "three", "four",
                            "five", "six", "seven", "eight", "nine",
                            "ten", "eleven", "twelve", "thirteen",
                            "fourteen", "fifteen", "sixteen", "seventeen",
                            "eighteen", "nineteen", "twenty", "twenty one",
                            "twenty two", "twenty three", "twenty four",
                            "twenty five", "twenty six", "twenty seven",
                            "twenty eight", "twenty nine",
                        ];
      
        if (m == 0)
            document.write(nums[h] + " o' clock " + "</br>");
      
        else if (m == 1)
            document.write("one minute past " + nums[h] + "</br>");
      
        else if (m == 59)
            document.write("one minute to " +
                                nums[(h % 12) + 1] + "</br>");
      
        else if (m == 15)
            document.write("quarter past " + nums[h] + "</br>");
      
        else if (m == 30)
            document.write("half past " + nums[h] + "</br>");
      
        else if (m == 45)
            document.write("quarter to " + nums[(h % 12) + 1] + "</br>");
      
        else if (m <= 30)
            document.write( nums[m] + " minutes past " + nums[h] + "</br>");
      
        else if (m > 30)
            document.write( nums[60 - m] + " minutes to " + nums[(h % 12) + 1] + "</br>");
    }
    
    let h = 6;
    let m = 24;
    printWords(h, m);
    
</script>

Output

twenty four minutes past six

Time Complexity: O(1)

Auxiliary Space: O(1) as constant space has been used

Add given n time durations

Anuj Chauhan

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