Amends the State Commemorative Dates Act. Provides that the date corresponding with the second new moon following the winter solstice, or the third new moon following the winter solstice should an intercalary month intervene, is a holiday to be observed throughout the State and to be known as the Lunar New Year. Provides that, when the Lunar New Year falls on a Saturday or Sunday, the following Monday shall be held and considered the holiday. Amends the Election Code, the Illinois Procurement Code, the School Code, and the Promissory Note and Bank Holiday Act to include the Lunar New Year as a holiday.