The time is 45-53 days, because I practice driving in my own examination room, so the pass rate is high and the time is short. And there is no need to record class hours during the waiting period, so I actually go to school for only one month.
The condition for taking the B2 freight car exam is that C 1 has studied for one year, and there is no record of full mark deduction, or you can take it directly without a driver's license. It takes 3-5 years to get a Class A driver's license.
I hope I can help you and adopt it.