Hello how may I help you? I have a question about time zones. sure, what would you like to know? How do they work? what do you mean? I want to know why there are different times in different parts of the world. i do not an answer for that, i can only calculate the times for different locations Ah, okay. Then, could you please tell me what time is it in Beijing? it is 3:48, Monday morning Thank you. you are welcome!