Use TimePickerDialog to get time from the user

TimePickerForAlarm

// Use a `TimePickerDialog` to get the `runDelay` from user to do so


// **class variable:**

	private TimePickerDialog time_picker;
	private Calendar targetCal;

// **A class constructor**

	public YOurClassName() {

			final Calendar c = Calendar.getInstance();
			mYear = c.get(Calendar.YEAR);
			mMonth = c.get(Calendar.MONTH);
			mDay = c.get(Calendar.DAY_OF_MONTH);
			mHour = c.get(Calendar.HOUR_OF_DAY);
			mMinute = c.get(Calendar.MINUTE);

		}

// **inside onCreate() or onActivityCreated():**

	time_picker = new TimePickerDialog(getActivity(), mTimeSetListener,
				mHour, mMinute, false);

// **Inside the class:**

	private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
			// the callback received when the user "sets" the TimePickerDialog in
			// the dialog
			public void onTimeSet(TimePicker view, int hourOfDay, int min) {

				hour = hourOfDay;
				minute = min;

				Calendar calNow = Calendar.getInstance();
				Calendar calSet = (Calendar) calNow.clone();

				calSet.set(Calendar.HOUR_OF_DAY, hour);
				calSet.set(Calendar.MINUTE, minute);
				calSet.set(Calendar.SECOND, 0);
				calSet.set(Calendar.MILLISECOND, 0);

				if (calSet.compareTo(calNow) <= 0) {
				// Today Set time passed, count to tomorrow
				calSet.add(Calendar.DATE, 1);
				}
				targetCal = calSet;
				}
		};

// use the `targetCal` in your code like this

	alarm.set(AlarmManager.RTC, targetCal.getTimeInMillis(), pending_intent);