My biggest reason for wanting this is to give my customers the option of using a shipping method that might get their package delivered as quickly as 2nd day or 3 day, with less cost (e.g. ground shipping within the same zone).
Have you checked the settings in configuration? both Fedex and UPS have options of delivery in 2, 3 days etc, as the admin you need to select them so that they are displayed in the front end for your customers to choose from. The customers can always choose if they need delivery in a day’s or two day’s time and the price varies accordingly.
Raj, I’m aware that I can choose which of the shippers methods to display (next day, 2nd day, 3 day, etc). What I’m trying to do is display the number of days (or date) that a GROUND shipment will take to be delivered (UPS refers to this as “Time in Transit” and they have an API specific to this information). That way, if the customer lives close to the origin of the shipment, they can see that Ground shipping will get it there in 1 or 2 days and for much less money than overnight or 2nd day shipping.
I understand the problem now, it is good that you want to give the best to your customers via \’Time in transit\’ feature but all the ready made extensions or plugins available in the market don\’t include this feature.
You will have to hire a developer to build this for you . Or else keep a simple request form for shipping charges in the product page and send the suitable shipping rates yourself to your customers after they place this request. Many companies whose products are large and need custom rates do this, all though your case is different.