It will be an adjustment Doydie but you'll work it out. It was a shock to both me and DH when he took early retirement. We finally reached a level where our routines are both flexible. He can do almost as much as he wants as long as he helps out around the house some, and cooks some meals, etc... We don't always go to bed at the same time or get up at the same time.
Sometimes I'll do his chores and he'll do mine but he's very good at trying to make his chores permanently
my chores...
His latest one is that why should he have to make me a salad when he cooks dinner? After all, sometimes lettuce can have dangerous contaminations on it, he read it on CNN. whuh???

And he takes vitamins so he doesn't need to eat a salad at night.
I have to lecture him a bit after these requests and he comes around, but he always tries anyway.
Anyway, just let him know what time you do certain things during your day, and that while you love him soooo much, you know he'll understand since he's such a sweet guy.

Let us know how it goes and remember, it might take some adjusting from both of you.