@matigo What happens when you surpass the limit?
If a company gets caught for not complying with the new overtime rule, or misclassifying employees as exempt, the Labor Standards Inspection Office can impose fines and penalties against both the company and whomever is tracking the employees’ working hours, such as the company manager or HR Manager,
At the same time, labor inspectors can currently only monitor 3% of all businesses in Japan.
Also looks like 360 hours per year and some interesting overtime pay figuring where OT that continues into Night pays more than OT that starts as Night. http://japan-payroll.com/overtime-pay-of-employees/