Snippet to change fedex shipping date if it is saturday or sunday. PluginHive Plugins : https://www.pluginhive.com/plugins/

functions.php

**
 * Snippet to change fedex shipping date if it is saturday or sunday.
 * Created at : 21 Nov 2018
 * Updated on : 22 Nov 2018
 * PluginHive Plugins : https://www.pluginhive.com/plugins/
 */
add_filter( 'wf_fedex_request', 'wf_fedex_request', 10, 3 );
if( ! function_exists('wf_fedex_request') ) {
	function wf_fedex_request( $request, $order, $parcel ) {	
		if(date('l',strtotime($request['RequestedShipment']['ShipTimestamp']))=='Saturday')
		{
			$date=date('c',strtotime('+2 days',strtotime($request['RequestedShipment']['ShipTimestamp']))); //adding +2 days if it is saturday. 
			$request['RequestedShipment']['ShipTimestamp']=$date;
		}
		elseif (date('l',strtotime($request['RequestedShipment']['ShipTimestamp']))=='Sunday') {
			$date=date('c',strtotime('+1 days',strtotime($request['RequestedShipment']['ShipTimestamp']))); ////adding +1 days if it is sunday.
			$request['RequestedShipment']['ShipTimestamp']=$date;
		}
		return $request;
	}
}