Make your hand into a fist Starting at the left, each knuckle and the space in between counts as one month. Count all the way across and when you get to the e

Make your hand into a fist Starting at the left, each knuckle and the space in between counts as one month. Count all the way across and when you get to the end of your fist, start over (or carry over to the next fist) Knuckle months have 31 days, months in between knuckles have 30 days (except for February)