"For a person whose past,present and future are the same" from Dhammapada
Dhammapada verse 421 does not say: &quot;for him the past, present and future are the same&quot;.
The Pali is:

Yassa (whatever) pure (past) ca (and) pacchā (future) ca (and), majjhe
(middle) ca  natthi (does not exist) kiñcanaṃ (in any way) akiñcanaṃ
(not in anyway) anādānaṃ (not grasping)
He who clings to nothing of the past, present and future, who has no attachment and holds on to nothing — him do I call a holy man. (Buddharakkhita)
He who has nothing
— in front, behind, in between —
the one with nothing
who clings to no thing:
he's what I call
a brahman. (Thanissaro)
For whom there is nothing in the past, the future or the present,
having nothing and unattached, that one I say is a brahmin. (Anandajoti)