I765 EAD CARD PROBLEM

ANYONE APPLYING FOR I765 (EAD CARD BASED ON I485) AT VERMONT SERVICE CENTER LAST NOVEMBER GOT APPROVAL NOTICE? THE RECEIPT NOTICE SAID IT TAKES 60-90DAYS TO PROCESS THIS CASE. IT'S PAST 90 DAYS NOW, DOES THAT MEAN "WORKING DAYS" ONLY?

BY THE WAY, IF I GET OFFER BUT HAVE NOT RECEIVED EAD CARD, CAN I FILE INTERIM EAD CARD AT LOCAL INS? HOW MANY DAYS SHOULD I WAIT BEFORE GETTING AN INTERIM EAD CARD?
THANK YOU.