when does first autoresponder email get sent?

when does first autoresponder email get sent?

I set up an autoresponder that is using a custom view in "leads" that contains two names. 


I set it up to send the inital email, and then subsequent different emails at 2 days.


The autoreponders is dynamic. The start date is today and the time is 8:00 AM. If I then modify the lead (at 7:55 A.M;) so it appears in Custom View used by the autorepsonders, would the email be sent at 8:00 AM that day?
I am confused at the precise autoresponder scheduling logic. 

No autoresponder email have been sent so it appears to be broken or it is my misunderstanding.

Thank you for your help!