wordpress time offset

gistfile1.txt

					$original_timezone = new DateTimeZone( 'UTC' );

				// Instantiate the DateTime object, setting it's date, time and time zone.
				$datetime = new DateTime( $time_to_change, $original_timezone );
        
        $blog_timezone = get_option( 'timezone_string' );

				// timezone not set use offset
				if ( ! empty( $blog_timezone ) ) {
					// Set the DateTime object's time zone to convert the time appropriately.
					$target_timezone = new DateTimeZone( $blog_timezone );
				} else {
					$offset = get_option( 'gmt_offset' );
					$sign = $offset < 0 ? '-' : '+';
					$target_timezone = new DateTimeZone( $sign . abs( $offset ) );
				}
				$datetime->setTimezone( $target_timezone );
        
        	$new_time = $datetime->format( $format );