timeConversion.js

/*
Given a time in -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


Return '12:01:00'.


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  hour format
Returns

string: the time in  hour format
Input Format

A single string  that represents a time in -hour clock format (i.e.:  or ).
*/

function timeConversion(s) {
  let [hour, minutes, last] = s.split(':')
  const seconds = last.substring(0,2)
  const isPm = last.substring(2) === 'PM'

  if (hour === '12' && !isPm) hour = '00'
  if (isPm && hour !== '12') hour = (parseInt(hour) + 12)
  console.log(`${hour}:${minutes}:${seconds}`)
  return `${hour}:${minutes}:${seconds}`
}