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  1. Time Conversion
  2. Discussions

Time Conversion

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331 Discussions

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  • stephanie_viver2
     + 0 comments
    function timeConversion(s: string): string {
    if (s.startsWith("12") && s.endsWith("PM")) {
        return s.slice(0,8);
    } 
    return s.startsWith("12") ? `00${s.slice(2,8)}` : s.endsWith("AM") ? s.slice(0,8) : `${+s.slice(0,2) + 12}${s.slice(2,8)}`;
}

  • ranechabria
     + 0 comments

    Scala

    def timeConversion(s: String): String = {
    // Write your code here
        val isAM = if(s.toUpperCase().contains("AM")) true else false
            
    val timeArray = s.split(":")
    val hours = timeArray(0)
    val minutes = timeArray(1)
    val seconds = timeArray(2)
            
    val militaryTime: String = hours match {
        case "12" if(isAM) => s"00:${minutes}:${seconds}"
        case "12" => s"12:${minutes}:${seconds}"
        case s if(!isAM) => s"${(Integer.parseInt(hours) + 12)}:${minutes}:${seconds}"
        case _ =>  s
    }
    
    militaryTime.replace("PM","").replace("AM", "")

        
    }

  • precondition
     + 0 comments

    It is unfortunate that HackerRank's supposedly C++20 environment is actually a C++17 environment. std::format would have been handy.

  • pkcodeltd
     + 0 comments

    Pretty simple javascript solution. Just splitting the time into hours, mins and secs, checking if it's am or pm and adjusting the hours as needed, then rejoining

    function timeConversion(s) {
    // Write your code here
    let time = s.slice(0, 8).split(':')
    let ampm = s.slice(8)
    if(ampm === 'PM' && time[0] !== '12'){
        time[0] = parseInt(time[0]) + 12
    } else if(ampm === 'AM' && time[0] === '12'){
        time[0] = '00'
    }
    return time.join(':')
    

}

  • asdert_102345
     + 0 comments

    Java:

    public static String timeConversion(String str) {

      String time12HourFormat = str;

    SimpleDateFormat inputFormat = new SimpleDateFormat("hh:mm:ssa");

    SimpleDateFormat outputFormat = new SimpleDateFormat("HH:mm:ss");

    try{

        Date date = inputFormat.parse(time12HourFormat);

        String time24HourFormat = outputFormat.format(date); 

        return time24HourFormat;

    } catch (ParseException e) {    
        e.printStackTrace();                    
    }
    return "";
   }