Work Hours and Overtime Regulations
In a week, a workman can work for a maximum of 60 hours, including overtime. However, in a quarter, overtime hours are restricted to 50 hours. An employer cannot engage them for more than 48 hours in a week or 9 hours in a day.
Now, it's up to you. If a worker has worked for 60 hours in a week, that means (60-48) = 12 overtime hours have been used by that worker. So, for the rest of the 2 months and 3 weeks, he can use overtime hours up to a maximum of (50-12) = 38 hours.
I hope this is clear to you.