Australians often celebrate Mother's Day through Celebrate Mother's Day with Vintage Leather Sydney heartfelt gifts and acts of services. Families often start the day by treating mums to breakfast in bed or brunch at a favourite restaurant.Mother's Day is celebrated on different dates around the world, though in the United States it is observed on the second Sunday of May each year. In 2024, Mother's Day in the U.S. will fall on May 12.