Days started at sundown for the jews at the time. If he was killed during what we consider the day time Friday, then maybe Friday sundown is second and sat sundown third? Googling it, I see some sites agree, or say that he might have been crucified after Sundown Thursday, and in the tomb Thursday night, which would be Friday.
I still feel like most people would count Sunday as the second day. Unless musicians are the ones counting.
Days started at sundown for the jews at the time. If he was killed during what we consider the day time Friday, then maybe Friday sundown is second and sat sundown third? Googling it, I see some sites agree, or say that he might have been crucified after Sundown Thursday, and in the tomb Thursday night, which would be Friday.