Are the loaders and unloaders at the airport tired?

Wenzhou Airport porters, loaders, sorters, and drivers generally work 15 to 18 hours a day. Late flights may be delayed all night, which is very tiring. In the end, the price we got was basically around 3,000 to 3,500, and the high point for a few people was limited. If we count the total of 8 hours a day as a shift, we would be at work more than 365 days, which is more than that, which means we have no days off throughout the year.