Output the timestamp of "now" for use in date comparison with [gvlogic]

gv-now-timestamp.php

<?php
add_filter( 'gform_replace_merge_tags', function ( $text, $form, $entry, $url_encode, $esc_html, $nl2br, $format ) {
  $merge_tag = '{gv_now_timestamp}';
  if ( strpos( $text, $merge_tag ) === false ) {
      return $text;
  }
  $local_timestamp = GFCommon::get_local_timestamp( time() );
  //$local_date      = date_i18n( 'Y-m-d', $local_timestamp, true );
  return str_replace( $merge_tag, $local_timestamp, $text );
}, 10, 7 );