How to translate 'ago' in interval time formatter in views?
can't we do like this?

  //Get today's date.
  $today = getdate();
  //Calculate the date "1 week ago".
  $start_time = mktime(0, 0, 0,$today['mon'],($today['mday'] - 7), $today['year']);


Also, you can change those zeroes to make 'n' hours/ minutes/ seconds ago.