How long does it take for seafarers of Qingdao Ocean Shipping Company to come back from sea once?

The time is uncertain. From boarding to vacation, it usually takes about 12 months; Of course, if the ship calls at a domestic port, the vacation will be more flexible. Half a year or 10 months is possible. There is still a scientific basis for the length of time: people stay on the ship for too long, are physically and mentally exhausted, are slow to reflect, and are prone to problems at work; Frequent personnel changes will easily lead to unfamiliar personnel and equipment, and problems will easily occur. In addition, the cost of personnel turnover is also high. The contract period of foreign companies is 6 months, and that of domestic companies is generally about 10 months.