I've seen that as well, the intriguing thing is, a lot of folks claim to know the exact day it was, they say Wednesday or Thursday or what ever. Yet no one claims to know how old Jesus was at the time of crucification nor at what date He was born.
Some say He was 33 years old, some say He was born at 4 BC and so on.
It tickles me with all the claims of exact day of... Yet none can explain a simple thing as how old He was or when He was born.
How about 1st century historians.... do they list the year or date the crucifixion took place? Maybe Justin Martyr, or Josephus?
I need to study more....