Last Visit Human Time Diff

Neither of those plugins are mine. Mine is here.
https://wpusersplugin.com/2637/recording-users-last-login/
(i’ll be putting an update up soon that does a little more)

If you are using those plugins I assume you have written an add-on to pull their data in the amr-users fields. (they store their data in other tables, not in the wp user-meta)
In that same add-on write a formatting function to format the field. Either format as part of the extract or add a separate formatting function (run at display time)

eg:
https://wpusersplugin.com/2823/formatting-and-pluggable-functions/