The series explicitly does not use a floating timeline like the mainstream Marvel Universe, instead presenting a Punisher who ages in real time. Gravestones and other references indicate that his family was killed in 1976. The Punisher has been active for almost 30 years at the time presented in most stories, with issue #19 specifying that he has killed approximately 2,000 people. Born also establishes that the Punisher’s service in the Vietnam War is still in MAX continuity.
EHT Comics 