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javadatetimesyntaxdatetime-conversion

Time Conversion from 12-hour to 24-hour clock in Java

I have a time in a string in the following format.

"MM/dd/yyyy hh:mm AM/PM"

I need to get the time in 24:00 hours format

ex:

String str = "04/30/2013 10:20PM"

I need to get the time as 22:20

Solution

  • You have to use SimpleDateFormat to any kind of date-time conversion.
    You can try this:

    import java.text.SimpleDateFormat;
import java.util.Date;

public class DateConversion {
   public void convertDate() {
      try{
       SimpleDateFormat df = new SimpleDateFormat("HH:mm");
       SimpleDateFormat pf = new SimpleDateFormat("MM/dd/yyyy hh:mm a");
       Date date = pf.parse("10:20PM");
       System.out.println(pf.format(date) + " = " + df.format(date));
        }catch(Exception e){
        // Do your exception handling over here.
        }
   }
}

    This will solve your problem I guess.
    This will give an output : 22:20

    Please let me know in case of any issue.