The best time to plant a tree was twenty years ago. The second best time is now.
The same principle applies to retirement planning.
The importance of retirement planning is evident, those who have given serious time and thought to what they will do after they retire (and how they will pay for it) will generally experience a smoother transition than those who haven't. We can easily be so busy during our working years that we arrive at retirement physically (and perhaps mentally) ready to retire but otherwise unprepared for many of the changes that retirement brings.
The best place to start is to obtain professional financial advice and set a plan in motion that is reviewed at least annually to enable you to build the future retirement you want.