To some, the exact day, dates, times and seasons of Biblical events, matter a lot.
I am not one of those people.
To me, what is important is that Jesus died. Jesus was buried. Jesus rose again.
If you are one of those people that live for the specifics and love the details, read Dr. Wayne Carver’s work on the “Chronology of the Crucifixion Week.” Read it here: http://philologos.org/bpr/files/misc_studies/ms007.htm