Changing sleep time for work

So in about a week I will have to go back to work. My LO now sleeps from 11.30PM to 8.30AM, which is great but wont work when I will go to work. I have to catch a train at 8.20AM at the latest and so he has to be at daycare at 7.40AM. This means I have to wake him up early. Can I just put him to bed at an earlier time or will that not work? He usually feeds at 8.30 AM, 12.30, 4.30 PM, 8PM, 11PM. If I wake him at 6.40AM will he be hungry and will he adjust his feeding schedule?

I have a week to try get him adjusted. I had hoped the clock change would solve my issues but it is currently 8.15AM here after the clock change and he is still in bed...