Looking for a delivery date extension which provides date options, via calendar, but is dependant on which delivery zone the parcel is going to.For each zone we want to be able to specify dates that are available - i.e. some zones will allow for next day, some will be 2 day at the earliest, etc. Most of the delivery day extensions I have found are not delivery zone dependant they are a single setting across the site.
Your question is not clear. You need to give more information about deliveryzone. how the magento system will have deliveryzone information about visitor? in what way you want to feed deliveryzone information into magento?
You can try this Delivery Date Extension.
The extension allows your customers to choose delivery date, delivery time and write comments while they are choosing a shipping method.
I recommend youBSS Order Delivery Date extension which could meet your requirement
The extension helps: