That is a load.
I was in the navy, of course it would say four years...that's what I signed up for...however...I got an early out so it was 3 years 9 months.
Would have been 3 years 8 months but I took an unauthorized 25 days vacation so it was tacked on sort of like snow days in school.
I was a BT and knew my job but tried to never show initiative so they was glad to be rid of me.
My long time friend on the other hand was a go getter. He made rate faster and was always volunteering for jobs.
Our shipping out dates were just a few days apart and he got the early out but then they extended him to train some new sailors on another ship and he wound up staying in almost four months past his normal hitch.
I used to make fun of lifers but truth be said most of you that stayed in are the back bone of our military.