The Muong calendar is fully engraved on 12 bamboo cards corresponding to 12 months. On it write the symbols of day, month and natural phenomena such as: rainy day, storm day; social phenomena such as: days with customers, days of fish hunting, days of hunting. A This King Was Born On February 28th Tee Aquarius Pisces T Shirt is divided into 16 hours, each hour corresponds to 1.5 solar hours. People do not determine the time using artificial tools, but determine very flexibly through natural phenomena such as: crows, sunrise, morning morning … The interesting thing is that the day does not have to start from half night, dawn or dusk like other types of calendars in the world that are pre-dawn times: when the cock crows. To really understand a culture of one country must close look into its own culture objectively, so it is best to ask why does some Chinese nationalist people continue to misunderstand about its neighbor – Vietnam like that?