3. For the value enter:
200000000000000000000000200000000000000000000000200000000000000000000000200000000000000000000000200000000000000000000000200000000000000000000000200000000000000000000000
This will set the schedule to Run everyday at 6pm and end by 5am.
This is only temporary.
4. Click Apply
5. Open the Web Administration Console and you should now be able to set your Retention Policies Schedule