What happens if New Year's Day, July 4th, November 11th, or December 25th fall on a Sunday?

When a holiday such as New Year's Day, July 4th, November 11th, or December 25th falls on a Sunday, it is customary to observe the holiday on the following Monday. This makes it convenient for individuals to enjoy a long weekend and ensures that the holiday is recognized even when it coincides with the weekend. The practice of shifting these holidays to the next day allows for continued celebration and observance in a way that accommodates schedules and public activities. Such customs are often established by state and federal regulations to promote uniformity and practicality in holiday observance.