If what were minutely important were the exact day and the exact hour, then God would have said this day, this hour, this year, this century, etc.
However, what is important is that He did died and that He bodily rose from the dead.
Why did He died --- to take the punishment that all sinners deserve.
John 3:16 and John 3:36 proclaim that what we should all be doing is putting our trust in Him and what He did at the Cross of Calvary, which is the only way to get eternal life.
The exact day and the exact hour is not the way to eternal life.