As a rough indication -
Monday and Tuesday nights (year 3/4 and year 5/6) - 3:45 pm. 4:35 pm , 5:25 pm and 6:15 pm. Wednesday (year 7/8) - 4 pm, 5 pm and 6 pm.
RVS games could be any of these times.
The draws are collated and sent out as far in advance as possible, to help with forward planning.