The Blue Sky with a White Sun (Chinese: 青天白日; pinyin: Qīngtīan Báirì) serves as the design for the party flag and emblem of the Kuomintang, the canton of the flag of the Republic of China, the national emblem of the Republic of China, and as the naval jack of the ROC Navy. In the "Blue Sky with a White Sun" symbol, the twelve rays of the white Sun representing the twelve months and the twelve traditional Chinese hours (時辰; shíchen), each of which corresponds to two modern hours and symbolizes the spirit of progress.