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  1. Prepare
  2. Algorithms
  3. Warmup
  4. Time Conversion
  5. Discussions

Time Conversion

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5196 Discussions

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  • therajneeshkumar
     + 0 comments
    function timeConversion(s) {
    /* Using array methods */
    let timeArray = s.split(":");
    let secondsLast = timeArray[timeArray.length-1];
    let seconds = secondsLast.slice(0, secondsLast.length-2);
    let suffix = secondsLast.slice(secondsLast.length-2, secondsLast.length);
    
    if (suffix.toLowerCase() === 'pm') {
        if (timeArray[0] < '12') {
            timeArray[0] = Number(timeArray[0]) + 12;
        }
    } else {
        if (timeArray[0] === '12') {
            timeArray[0] = Number(timeArray[0]) - 12;
        } else if (timeArray[0] === '12' && timeArray[1] === '00' && seconds === '00') {
            timeArray[0] = '00';            
        }
    }
    
    timeArray[timeArray.length-1] = seconds;
    return timeArray.join(":");
}

  • therajneeshkumar
     + 0 comments
    function timeConversion(s) {    
    /* Using String slice method */
    
    let [hour, minutes, seconds] = [s.slice(0, 2), s.slice(3, 5), s.slice(6, 8)];
    
    if (s.slice(s.length-2, s.length).toLowerCase() === 'pm') {
        if (hour < '12') {
            hour = String(Number(hour) + 12);
        } 
    } else {
        if (hour === '12' && minutes === '00' && seconds === '00') {
            hour = '0' + String(Number(hour) - 12);
        } else if(hour === '12') {
            hour = '0' + String(Number(hour) - 12);
        } 
    }
    return `${hour}:${minutes}:${seconds}`;
}

  • tjrbrom
     + 0 comments
    public static String timeConversion(String s) {

    String result = s;

    int time = Integer.parseInt(s.substring(0, 2));

    if (s.endsWith("PM")) {
        if (time < 12)
            time += 12;
        result = s.replace(s.substring(0, 2), "" + time);
    }
    else if (s.endsWith("AM")) {
        if (time >= 12) {
            time -= 12;
            result = s.replace(s.substring(0, 2), "0" + time);
        }
    }

    return result.substring(0, result.length() - 2);
}

  • jaaasper_liu
     + 0 comments
    def timeConversion(s):
    if s[-2:] == "PM" and s[:2] != "12":
      return str(int(s[:2]) + 12) + s[2:-2]
    elif s[-2:] == "AM" and s[:2] == "12":
      return "00" + s[2:-2]
    else:
      return s[:-2]

  • flaviojoserobles
     + 0 comments

    C#

    return DateTime.Parse(s).ToString("HH:mm:ss");