Christmas and New Year’s Day occur exactly one week apart. So a New Year’s that occurs right after Christmas should be on the same day of the week. But in the year 2020 Christmas will occur on a Friday and New Year’s on a Wednesday. Why is this?
Answer
In 2020, New Year occurs on January 1st, 2020 and Christmas on December 25th, 2020. These dates are 51 weeks and 2 days apart, not one week apart.
Christmas and New Year (of the following year) are one week apart. A New Year and Christmas on the same year are 51 weeks and 2 days apart.