How to know if now time is between two time?

try this

    int from = 2300;
    int to = 800;
    Date date = new Date();
    Calendar c = Calendar.getInstance();
    c.setTime(date);
    int t = c.get(Calendar.HOUR_OF_DAY) * 100 + c.get(Calendar.MINUTE);
    boolean isBetween = to > from && t >= from && t <= to || to < from && (t >= from || t <= to);

use this method:

String dateFormat = "HH:mm:ss";
String startTime= "20:20:20";
String endTime= "12:12:12";
String currentTime = new SimpleDateFormat(dateFormat).format(new Date());

Calendar cStart = setTimeToCalendar(dateFormat, startTime, false);
Calendar cEnd = setTimeToCalendar(dateFormat, endTime, true);
Calendar cNow = setTimeToCalendar(dateFormat, currentTime, true);   
Date curDate = cNow.getTime();

if (curDate.after(cStart.getTime()) && curDate.before(cEnd.getTime())) {
    System.out.println("Date is in range");
} else {
    System.out.println("Date is out of range");
}

    String timeFrom = "12:00:00";
    String timeTo = "15:00:00";
    String timePoint="14:30:20";

    Long timeFromVal = Time.parse(timeFrom);
    Long timeToVal = Time.parse(timeTo);
    Long timePointVal = Time.parse(timePoint);

    if(timePointVal>timeFromVal && timePointVal<timeToVal)            
            Log.i("Time report ","Time is Valid.");

For example:

try {
    String string1 = "20:11:13";
    Date time1 = new SimpleDateFormat("HH:mm:ss").parse(string1);
    Calendar calendar1 = Calendar.getInstance();
    calendar1.setTime(time1);

    String string2 = "14:49:00";
    Date time2 = new SimpleDateFormat("HH:mm:ss").parse(string2);
    Calendar calendar2 = Calendar.getInstance();
    calendar2.setTime(time2);
    calendar2.add(Calendar.DATE, 1);

    String someRandomTime = "01:00:00";
    Date d = new SimpleDateFormat("HH:mm:ss").parse(someRandomTime);
    Calendar calendar3 = Calendar.getInstance();
    calendar3.setTime(d);
    calendar3.add(Calendar.DATE, 1);

    Date x = calendar3.getTime();
    if (x.after(calendar1.getTime()) && x.before(calendar2.getTime())) {
        //checkes whether the current time is between 14:49:00 and 20:11:13.
        System.out.println(true);
    }
} catch (ParseException e) {
    e.printStackTrace();
}

上面的 code, 滿有趣的，我把變數內容印出來，他的日期時間居然是第 1天的日期（Thu Jan 01 12:34:56 CST 1970）時間，如果日期是空的的時候。