warranty of never turned on device

Hello,

if I will buy macbook air which was never turned on will the 1 year warranty be running from the day it's turned on?

Let's say seller don't have invoice.

https://selfsolve.apple.com/agreementWarrantyDynamic.do says:

Please validate your product's purchase date.

Apple is unable to provide information about your service coverage. Please sign in with your Apple ID and provide your product's date of purchase so that we can display your coverage information.

I read the general warranty and there is written that invoice is needed.