@NanaLetha is correct.
There's nothing on the shipping profile page about setting the delivery time with calculated shipping or fixed shipping.
You can only set a processing time.
From the profile page:
Processing time
How much time do you need to prepare an order and put it in the mail? Keep in mind, shoppers have shown they're more likely to buy items that ship quickly.
Under "Fixed" shipping it has options to select like Priority, Ground Advantage but that "delivery time" next to each mail class is an estimate of delivery times for that mail class, it isn't used to set "your" delivery times.
Delivery times are based on the mail class you select and when you mail an item.
The clock starts ticking on the est. delivery time when you mail the item.
Example you have a 5 day processing time to mail the item but you mail it on the 2nd day. The estimated delivery time not based on the 5 days but on the day you mailed it.
Other info on the shipping profile page:
Shipping service—plus your processing time and where you’re shipping from—help us calculate theestimated delivery dateswe show buyers.
The transit times shown here are the carriers’ general estimate.
We want you and your buyers to be confident your orders will arrive on time. So we keep an eye on carrier activity and adjust buyers’ estimated delivery dates based on the latest transit times.
