This calendar can be started at anytime, as the child will write in the months, days of the months and the year. Giving them hands on experience on how a calendar works. Plus they get 12 different musical instruments to color. There are no holidays depicted on the calendar, the child can write in any birthdays or special days as they desire. Each month has a little note section for them to keep track of events in their life. A nice keepsake for years to come.