11. Poland:
In Poland, only around 66 percent of the Polish professionals take all their paid holidays allotted to them and they even enjoy 10 public holidays in a year. Polish professionals work for almost 1,966 hours in a year, when compared to all the other four nations mentioned earlier in the list. As per the OECD average working hours, i.e., 1 749 hours in a year, working for 1,996 hours in Poland is a lot more than the average working hour. In Poland, 11 percent of the men devote time for longer working hours and 3 percent of women devote time for long working hours, as per the OECD report on Work-life balance.

10.  China:
Chinese stand at the number 10^th position when it comes to the hardest working employees in the world. Approximately 65 percent of the Chinese professionals get the benefit of all their paid vacation days along with 11 government holidays. Apart from that, the companies in China are supposed to give at least 10 vacation days for their employees.