You might try this:
Create 4 time windows.
One is from 04:55 until 06:25
2nd 07:15 until 8:45
3rd 09:20 until 10:50
4th: 12:00 until 22:30
create a submit window every 30 minutes.
Create 4 submit jobs.....1st with time window 1 and submit frame every 30 minutes.
same for the other time windows.
Let the jobs only run when the time window is open.
Hope this helps.