Anne, I think you just have to purchase before 4 pm:
"*Offer valid 5/06/10 from 12:00 pm to 4:00 pm EST at calvinkleinjeans.com only. Customers will receive 40% off regular priced items during the promotion period, except as noted herein. Offer not valid on previous purchases and excludes all women's and men's underwear, already reduced items and online gift certificates. Free Shipping offer applies only for standard shipping to one single address in the Continental U.S., and not available for shipments to APO/FPO addresses. Simply add products to your shopping cart and free standard shipping will automatically be applied on orders of $85 or more. This offer cannot be combined with any other offer. Online gift certificates, handling charges and taxes do not qualify toward the minimum $85 purchase. No cash value. Void where prohibited by law. Employees of The Warnaco Group, Inc. or any related entities, affiliates or subsidiaries are not eligible for this offer."
