I think our compulsory quote is 30 hours a year. There are compulsory research training modules you have to cover in the first year full-time, or couple of years part-time but these can be counted in the 30 hour quota. In reality, I probably have done 2 to 3 courses a year, mainly research training with some academic practices classes (writing, preparation for conferences, publication, upgrading, viva etc.) thrown in.