The human_time_diff function applies a filter to the results at the end of the function call.
return apply_filters( 'human_time_diff', $since, $diff, $from, $to );
So, use that filter to replace the text with what you want it to be instead.
The human_time_diff function applies a filter to the results at the end of the function call.
return apply_filters( 'human_time_diff', $since, $diff, $from, $to );
So, use that filter to replace the text with what you want it to be instead.