Resurrection on what day?

The main support  for 3 full days and nights is Matthew 12:40 saying “3 days and 3 nights.”

Mat 27:3 says “after three days” he would rise (yet secure the grave for 3 days not 4).  This view puts the resurrection on Saturday, but after 72 hours in the grave, being Thurs, Fri, and Sat.

But Jesus also said he would rise on the third day.

Lk 9:22; 13:32-33 (notice the inclusive language of today, tomorrow, and third day), 18:33.

Luke 24 is especially a problem, since it is clearly Sunday, and it is said to be the third day.  24:1, 6-7, 18-21:  third day since “these things.”

So you have a resurrection on the third day, Sunday, yet a ref. To 3 days and nights.