Depending on the context it is used, 40 winrar days could represent a mere 40 days, or beyond infinity. The duration depends on the person's will to wait five seconds before using winrar.
Person 1: Oh, I saw your ex yesterday!
Person 2: Wow, I haven't seen that bitch in like 40 winrar days.
Kurzgesagt: The inevitable heat death of the universe is over a trillion quadrillion billion years away.
Person 3: Damn, atleast my 40 day winrar trial will still live on.