THE WORD MOTH AND 3 MONTHS ETC., SHOULD BE CALCULATED BASING ON THE CALENDER MONTH. IF THE MONTH IS APRIL, JUNE, SEPTEMBER OR NOVEMBER, THE MOTH PERIOD IS 30 DAYS. IF THE MONTH IS JANUARY, MARCH MAY, JULY , AUGUST, OCTOBER OR DECEMBER, THE PERIOD OF MONTH IS 31 DAYS. IF IT IS FEBRUARY, IT IS 28 OR 29 DEPENDING ON LEAP YEAR. BUT NOT 30 DAYS FLATLY.