This really depends on a lot of things, especially your current income and age.
If you are young and are not receiving the best pays in the world, you should probably wait a little longer, but if you have an above average pay and you are not in your 30's any more it is probably time to start saving some money for rainy days, so to speak.
Saving money is not something you just happen to start doing one day because retirement days are drawing near.
You have to think about it a little and see if you can really start saving.
You can retire wealthy and save money if you don't have to pay rent or a mortgage, otherwise you would be better off waiting a couple of more years and then see how things are.
This is a very relative science because no expert can tell you for sure when to save and when to spend.
It is important to understand that there are also other ways to retire wealthy.
You don't really need to tighten the belt and save money as a young person when you need to have fun and spend loads of money.
You can wait until your 30 or so, and than start thinking about retirement and saving money.
There is also the option of investing small but constant amount into real estate or 401K.
Now, I wouldn't know much in the line of that, but as I could see it, most Americans do this in order to increase the amount of money in their retirement fund.
By this respect, I believe it is probably the best way to retire wealthy.
If you can't save enough and you are starting to become desperate about your retirement you can always get a second job and use that money to put in a savings account.
Again, this is something that only you alone can decide, but it is recommended for people with below average pays.
To retire wealthy is similar to growing a pig or a chicken.
You keep feeding it, you keep cleaning about and after a lot of time and effort you can have a big juicy stake.
It probably is the same with a lot of other things in life, but we're not discussing that right now.
You decide what is best for you and your family.