In China the Lantern Festival begins on the 15th day of the first lunar month, or about the end of Spring Festival which is also known as the Chinese New Year. It is easy to understand how lanterns might be a part of a celebration welcoming the lengthening days.
However, there is also a Mid-Autumn Festival, which is also sometimes called a Lantern Festival. In Montreal September and October are the months when over 1000 elaborate lanterns made in Shanghai are put in place to delight visitors to the Jardin Botanique Chinese Garden. We did not see them lit up in the evening, (the garden stays open until 9 pm for the event) but even during the day the lanterns are great fun as we followed them through the different sections of the Chinese garden.