Time parsing issue on Android

I am getting a parse exception when trying to parse the time string 02:22 p.m..

I have the following conversion function:

public static long convertdatetotimestamp(String datestring, String newdateformat, String olddateformat){
    SimpleDateFormat originalFormat = new SimpleDateFormat(olddateformat,Locale.ROOT);
    SimpleDateFormat targetFormat = new SimpleDateFormat(newdateformat,Locale.ROOT);
    Date date = null;
    try {
        date = originalFormat.parse(datestring);
        String formattedDate = targetFormat.format(date);
        Date parsedDate = targetFormat.parse(formattedDate);
        long nowMilliseconds = parsedDate.getTime();

        return nowMilliseconds;
    } catch (ParseException e) {
        e.printStackTrace();
        return 0;
    }

}

The method is called in another activity with a time format "02:22 p.m.". olddateformat and newdateformat are the same: hh:mm a.

It causes following error in log:

java.text.ParseException: Unparseable date: "02:22 p.m." (at offset 6)

How to resolve this issue? Time is in exactly above mentioned format.

Following changes that i've made works fine for me.

 public static long convertdatetotimestamp(String datestring, String newdateformat, String olddateformat){
        DateFormat originalFormat = new SimpleDateFormat(olddateformat,Locale.ENGLISH);
        DateFormat targetFormat = new
                SimpleDateFormat(newdateformat,Locale.ENGLISH);
        Date date = null;
        try {
            date = originalFormat.parse(datestring.replaceAll("\\.", ""));
            String formattedDate = targetFormat.format(date);
            Date parsedDate = targetFormat.parse(formattedDate);
            long nowMilliseconds = parsedDate.getTime();

            return nowMilliseconds;
        } catch (ParseException e) {
            e.printStackTrace();
            return 0;
        }

    }

Locale.ENGLISH you can use your locale, english solved my issue. Reference.

Thanks for responses and references.