If you instead wanna go by years, Anakin had that saber throughout the five years of The Clone Wars, Luke had it about 2-3 years, and Rey had it for a single year. With that, then we have Anakin building it and using it for longer than Luke and Rey combined, and Luke building and using a different saber for 25-30 years.
The Clone Wars were only 3 years though.
Anyway, I can see the logic behind the edit idea, it just doesn’t seem necessary.
It was five years. When the movies were first coming out, they said it was two years in old EU materials. But as The Clone Wars series was being developed, that team decided that overall it would take place over the course of five years (mainly allowing for Ahsoka’s development and growth).