西藏地处东经78 25′至99 06′之间,与北京时间(东八区)相差两小时。而广东地处东经109°39′~117°19′之间,与北京时间经度120度相近,所以,广东8点,西藏应该是6点。
Tibet is located between 78 25' and 99 06' east longitude, which is two hours behind Beijing time (East 8). Guangdong is located between 109°39' and 117°19' east longitude, which is close to 120 degrees longitude of Beijing time. Therefore, at 8 o'clock in Guangdong, it should be 6 o'clock in Tibet.