code: public static int getDayInWeek(long time) {
  
  		int dayInWeek = getCalendar(time).get(Calendar.DAY_OF_WEEK) - 1;
  
  		// SUNDAY == 1 - 1 == 0
  		if (dayInWeek == 0) {
  			dayInWeek = 7; // make sunday the last day of the week
  		}
  
  		return dayInWeek;
  	}
docs: Returns number of day in week, where monday is the first day of the week (1)
  
  @param time to check day in week
  @return 1 - monday, 2 - tuesday ... 7 - saturday