Here are a few examples of national holidays with changing dates in January:
- Martin Luther King Jr. Day (United States): Celebrated on the third Monday of January, this day honors the civil rights leader Martin Luther King Jr. and his contributions to the fight for racial equality in the United States.
- Australia Day (Australia): Although Australia Day is observed on January 26th each year, if it falls on a weekend, the holiday may be moved to the following Monday to create a long weekend.
- Epiphany (Orthodox Christian countries): In many Orthodox Christian countries, the Epiphany is observed on January 19th (instead of January 6th) due to the use of the Julian calendar. This holiday commemorates the baptism of Jesus Christ and the visit of the Magi.
- Republic Day (India): Republic Day is celebrated on January 26th each year to mark the adoption of the Indian Constitution. However, if January 26th falls on a Sunday, the holiday may be observed on the following Monday.
- Lunar New Year (Asian countries): Also known as the Chinese New Year or Spring Festival, the Lunar New Year is a significant holiday in many Asian countries like China, Vietnam, and Korea. The date of the Lunar New Year changes each year, as it is based on the lunar calendar, but it typically falls between January 21st and February 20th.
Please note that not all of these holidays fall in January every year. However, they are examples of holidays that may occur in January and have changing dates due to various factors such as the day of the week, calendar systems, or lunar cycles.