Delivery Time for Magento 2
Magento delivery date plugin also deals with the min delivery lead day, you may apply cut-off time on the minimum delivery day.
Top 7 Magento 2 Delivery Date Extensions - Magetop Blog
How Magento 2 Delivery Date and Time Extension Solves Common E-Commerce Delivery Challenges.
Iconic - WooCommerce Delivery Slots
The Store admin can control the delivery/pickup Dates, Time Slots, Business Hours, Day Break time, Holidays, Radius Shipping, Zipcode Base Shipping, Delivery ...