The Time in Words

Given the time in numerals we may convert it into words, as shown below:

5:00 -> five o’clock

At minutes = 0, use o’ clock. For 1 <= minutes <= 30, use past, and for 30 < minutes use to. Note the space between the apostrophe and clock in o' clock. Write a program which prints the time in words for the input given in the format described.

Function Description

Complete the timeInWords function in the editor below. It should return a time string as described.

timeInWords has the following parameter(s):

• h: an integer representing hour of the day
• m: an integer representing minutes after the hour

Input Format

The first line contains h, the hours portion The second line contains m, the minutes portion

Constraints

• 1 <= h <= 12
• 0 <= m < 60

Output Format

Print the time in words as described.

Sample Input 0

1
2

5
47

Sample Output 0

1

thirteen minutes to six

Sample Input 1

1
2

3
00

Sample Output 1

1

three o' clock

Sample Input 2

1
2

7
15

Sample Output 2

1

quarter past seven

Solution

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// Complete the timeInWords function below.
function timeInWords(h, m) {
  let words = [
    "zero",
    "one",
    "two",
    "three",
    "four",
    "five",
    "six",
    "seven",
    "eight",
    "nine",
    "ten",
    "eleven",
    "twelve",
    "thirteen",
    "fourteen",
    "fifteen",
    "sixteen",
    "seventeen",
    "eightteen",
    "nineteen",
    "twenty",
    "twenty one",
    "twenty two",
    "twenty three",
    "twenty four",
    "twenty five",
    "twenty six",
    "twenty seven",
    "twenty eight",
    "twenty nine"
  ];

  return !m
    ? `${words[h]} o' clock`
    : `${
        !(m % 30)
          ? "half"
          : !(m % 15)
          ? "quarter"
          : `${m <= 30 ? words[m] : words[60 - m]} ${`minute${
              m > 1 ? "s" : ""
            }`}`
      } ${m <= 30 ? "past" : "to"} ${words[m <= 30 ? h : h + 1]}`;
}