This is a piggy bank with a clock function. The coins we deposit are just like the time we accumulate. As time goes by, more and more coins will be accumulated. Will the coins accumulated in the can be reminiscent of the flight of time and thus cherish time as much as money?

Remember the second lesson assignment

Fill up time with money, what is the meaning of life

Ha, ha, ha, ha, it is very good to implement time as money!