Like I said, hours differ from depot to depot....I'm not sure if your on about start times or length times. In my link, my first turn was around 04:25 sign on, and the last one was about 22:00ish. They ranged from 6 hours to 10hr 45. If you was in the starter link, their first turn was 00:30.
The difference in pay. I started at Intermodal from the start 97/98 and left about 5 years ago, I was there when they set up HH.
Being a intermodal driver, you had a roster and could see what you were doing over the course of 6 months and could plan your life, you also had conditions, but the pay was a lot lower. If I can remember, about 5k when it kicked off. HH would work ballast jobs at weekends, where I would always be in bed Saturday and Sunday night...HH really never had any conditions, no start times just AM,PM and nights, so you had to be quite flexible, this was reflected in the bigger pay, and still to this day.
I think HH still may work to AM,PM and nights, though over the years they have picked up more and more booked work, so they may even have start times now.
I think Intermodal are currently on about 51k (pretty poor), not sure on HH but must be around 58/59k. If I had the choice, and if I was still there I would still stick with Intermodal. Having conditions are a must. I didn't fancy driving around in a van and having my breaks in a petrol station...Nah thanks.