If we are talking college, I'm a '73. I should have been a '72, but between the credits required for an EE degree, and the half my AF ROTC credits which did not count towards it, I took 5 years. Could have done it in 4 1/2, but then I'd have lost my ROTC scholarship, but still had to stay for that last semester anyway.
If we are talking high school, then I'm an old dude of the class of '68. :)
High school. I believe my hubby was class of 69,
I didn't start college myself until 1980 and took 4.5 years.