The Huffington Post has come out with a list of days when people tend to watch less porn that usual.

Another day when porn is not watched like the usual days is Father’s Day.
New Year’s Day is a day when less porn is viewed as after partying for long hours, people are too hungover to do anything but lie in a foetal position.
Christmas Eve is not spent watching porn as it is a busy day and people busily bake cookies.
As Easter is a religious holiday, many people spend their time in church.
On Thanksgiving Day, nothing makes you feel less sexy than overindulging on food.
Christmas Day is a hectic day as people are busy dealing with their relatives.
Source-ANI