But he told the thief on the cross "Verily I say unto thee, Today shalt thou be with me in paradise." (Luke 23:43)
After those three days.
I believe He was in hell for the three hours of darkness while on Calvary.
Paradise was the place of departed spirits. The bosom of Abraham was where the children of Israel went until the Messiah came to claim them. Christ told the thief that he would be with Him in Paradise and that was so, then Jesus cleaned out the Bosom of Abraham and took them with Him.
A day is like a thousand years.
Paradise, Abraham’s Bosom, the abode of the righteous dead in Sheol. They were together there that very day.