How many minutes does it take from Chang 'an, Dongguan to Humen by light rail?

84 minutes. Chang 'an Town is located at the southern end of Dongguan City, and Humen Town is located in the southwest of Dongguan City, Guangdong Province. According to Baidu map, the linear distance between the two places is 18.7 km, and the light rail takes 84 minutes to arrive. Dongguan, referred to as "Dongguan" for short, is a prefecture-level city and megacity under the jurisdiction of Guangdong Province, and the central city on the east coast of the Pearl River Delta as determined by the State Council.