The Mandarin Chinese name of the holiday is "Chūn Jié", which means "Spring Festival". This is why it is often called the "Spring Festival" by Chinese speakers of English, even though the holiday always occurs in the winter months of January or February. Its name is written in traditional Chinese writing and in the easier writing now used by mainland China and Singapore. The Republic of China began to use this name in the 1910s, after it began to use the European calendar for most things.