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In China and some other Asian countries, some people celebrate their birthday according to Lunar Calendar. While some others celebrate their Solar birthday. In this situation, People always mix date and have no idea which date to say Happy Birthday to their friends. This is the reason why we make Lunar Calendar Clock. The clock can show both Lunar & Solar Calendar in the Black and white area and to remind people of their friends birthday in both lunar and solar day.
Xiangfei Ran， Jing Wang， Shaomin Huang， Duo Chen