Can anybody please help?

All in the wrist:
Hi thanks for taking the time to reply.

So after my 6 hours 14:00-20:00 I need to take 30 min? I thought 45min but I don’t know.

No.
So week 2 is 6:45 to 20:00 shift length.
There are 2 rules to wtdrt

  1. The length of all breaks
  2. Can’t exceed 6 straight hours without 15 mins break in it (not after it)

You’ve got the long break, so that’s your 45 mins which is required for over 9 hrs shift.
All you need is not to exceed 6 hrs straight from 14:00 to past 20:00, then there’s no requirement for a 15 min break.