February 9, 2024. Lunar New Year's Eve is the last day of the Lunar New Year. According to the China calendar, the lunar year is divided into flat year and leap year. There are 365 days in a normal year and 366 days in a leap year. Therefore, New Year's Eve usually appears on the 29th of the twelfth lunar month, which is the day before the Spring Festival. 2024 is a leap year, so there are 366 days. The 29th day of the twelfth lunar month is February 9th, so this year's Lunar New Year's Eve is February 9th, 2024.