How many clocks are there on the wall of the service desk in the lobby of a five-star hotel?

"The clocks hung in hotels usually show the time of countries with large time difference or certain international influence, such as London (UK), new york (USA), Moscow (Russia) and Sydney (Australia). In addition, most foreign tourists who come to China come from these countries. " In addition, whether the hotel hangs a clock or not reflects the taste and level of this hotel. Usually, high-star hotels that are considerate of tourists hang more clocks, while low-star hotels hang less. In the evaluation of provincial and municipal hotels, whether the wall clock is hung or not is also an important indicator. Therefore, Beijing time has five * * *.