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Thread: Help with Date.getTime()

  1. #1
    Junior Member
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    Default Help with Date.getTime()


    I'm having a problem with this method and I can't see what I'm doing wrong

    import java.util.Date;
    import java.text.DateFormat;
    import java.text.SimpleDateFormat;
    import java.text.ParseException;
    public class Main {
        public static void main(String[] args) throws ParseException {
        DateFormat format = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss");
        String start = "19-09-2011  08:00:00";
        String end = "19-09-2011  12:00:00";
        Date d = format.parse(start);
        d = format.parse(end);

    When I use that code, I get that end < start but only if end is set at 12:00:00. For example, if I change the ending hour to 11:00:00 it works fine. Any ideas?


  2. #2
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    Default Re: Help with Date.getTime()

    I honestly had no idea what was going on, as I've never used these classes before.
    I read the API for SimpleDateFormat: SimpleDateFormat (Java 2 Platform SE v1.4.2) and noticed their examples were using
    capital letters for the hour. So by changing hh:mm:ss to HH:mm:ss it worked fine.

    I cannot tell you why, but I would be grateful If you could go away and research it yourself, before posting what you find out here for others who stumble across this thread.
    My only guess would be that capital letters might have some relation to a 24 hour format.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

  3. #3
    Junior Member
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    Default Re: Help with Date.getTime()

    I changed hh:mm:ss to HH:mm:ss and it worked fine. I looked at what was the cause and it seems 'h' is used for the am/pm hour format and 'H' for the 24-hour format.

    Thanks newbie.

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