The final step is the time-frame. The time-frame that means the time for the goal you should determine exact time to start and the deadline. As a result, the target date is to encourage you to guide your goal and to succeed and complete timely. It is useful to define what you are going to accomplish in the half-way of the process the goal.
For example, the goal to lose ten kilograms in two months you should measure your weight after your first month to see are you really lose five kilograms. It is helping you to know are you working well through the first part and are you near to achieve your goal. In contrast, if you set a goal without a realistic time frame, it lacks your chance to succeed.
In conclusion, S.M.A.R.T goals is a way to set something you want to achieve. Ask yourself questions why you want to achieve this goal, what time you want the accomplishment, and is it realistic and make sense because over six months all your answer for these questions change, so you should set the S.M.A.R.T goals again to make sense.