When Is 'Chong Chiu Cheh'

I have a problem looking for calendars lately. In my house, there are very few calendars and the ones that I have are missing! I suppose it's my girls taking them and playing or scribbling with it again. There was once last year when Rae took them and coloured all the numbers on it. I need the one that has the Chinese dates on it. Sometimes it is helpful as I am in touch of the chinese 1st day and 15th day of Full Moon. Does anyone know when is the 15th day of Chinese month for this Mid Autumn Festival? It's so that I know I can bring the girls out to have fun with their lanterns when everyone is having fun too. Is it tonight?