I just had a 6th year old bday party at Mcdonald for my son. he is now K3, I believe it is the best time, but my concern was the day would be on CNY holiday, not sure would the classmates come. Finally, I booked the venue (McDonald) on 1/31, distribute the invitation card on 2/1 which is the last day before CNY holiday, the party was on 2/12. He told us that he was very very happy and look forward to the 7th bday party.